1. So we have vending machines with extremly inconvinient interface
2. Examine filters at bottom of screen [T] to show the content of current machine (or + stash)
3. We need some goods to sale and to have some starting money (1400 per day vendor's easy starting money)
4. We need some additional time to collect information (make some marketing investigations)
5. We need to know and understand the internal technical part of this technology (basic knowlege of client-server calls)
6. We need to know additional information about some vulnerabilities of this trading technology*
I do not have the normal possibility to demonstrate bugs using video recording, so I would describe everything in text manner and you could chek this things occasionally ingame
All screenshots in this guide are in some local language (not English), but you may easy find out all information you need inside your game

So, let us begin.
1. You have lmimit of 4 (four) vending machines per camp budget
2. If you are moving your camp at some new place you should delete saved machines from saved plans to clear budget befor creating new machine
If some machine was deleted from camp (world) all goods inside become unpriced (so, move filled machines inside the camp using [E])
3. To sell goods vending machine do not needed electrical supply (vulnerability)
Unplugged vending machine:
Could sell any stuff:
4. Adding power cord to any of your machine makes your shop visible on map to every player on server
5. To prevent sellings from unplugged machine you should place it in closed room, so other players could not interact with it (some players are using windows, while another are using garage doors)
Closed:
Open:
Note: If you wish not to sell from unplugged machines than you should leave as little free place inside rooms as possible. That tactics should prevent intrusion thru walls, using photo mood camera teleportation glitch (and using power armor wall-penetration glitch too).
6. Character's cap limit is 30000.
7. Bethesda's tax is 10% of your price. Buyer pays 5000. You gains 5000-10% = 4500 caps.
8. If anybody buys your goods, when you are next to reach your limit, you would gain next to 0 caps (vulnerability).
Example: your balance is 28 000 caps and you are selling some stuff for 5000. You would gain 2000 caps.
Example 2: your balance is 30 000 caps and your are selling some stuff for 25 000 caps. You would gain 0 caps (but buyer would pay 25 000)
04 July 2020 15-40 GMT I had about 13k caps on my main character and have sold Emmett Mountain hazmat suit for 24 999 caps and lost more than 5 500 caps :(
I'm regullary losing caps because of this stupid limits. Support service do not refunding such loses, using standard form answering to my requests not to sell my stuff, when I have no room for incoming caps!
Answer is offtopic:
9. Quick exit from server to menu/desktop is not granting your stuff savings (vulnerability of client-server architecture of game)
Example: you have already closed your game client, but buyer is still paying money and game server is still selling your goods.
10. Find out good position at the center of map, so any player could easy quick move to your location
This place should be near some place of interest, so people who would spend some money to teleport to your position could make some ingame quests in your location
(example: could return transport fee by killing some big monster with 20 caps inside)
11. If you found out proper place you would frequently shown pop-up message when game loads, that your place for camp is busy.
You may stay in this server without your camp, so you could buy goods, but not sell them (this is safe)
But in this case all goods in your stash is unmarked (because you have no vending machine in this server). Taking some item from stash, which is on sell, would cause that all items became unpriced when you would load to your camp in future.
So, take items from your stash carefully in this case (you may safely put items to stash)
As for the shop location: check the position of quick teleport entrance to your camp. It should be easy to find out your machines from entrance location.
Do not build your camp in mountains and in skyes, because players would fall to the land (or stuck in textures), have death and bad mood
This vulnerability is connected with scene rendering at your buyer's computer. He/she teleports to yours camp empty area and then his/her computer begins to render your camp's textures (floors, walls and so on).
Thats why this players could stuck in parts of your camp or to be locked in some internal parts of your home.
To solve this issue if you are in same situation you need to teleport to this shop again (all textures are already loaded) and you may enter this camp.
Better way to avoid this feature is making one-leveled camp.
12. Culture: the good manner is making to your clients easy access to workbenches, free water/junk/grog (to compensate transport fee)
And one more inconvinience - there is no log function in this trading system, so no trading history is saved. You should manually make screenshots (photos) of your stuff to calculate your incomes (and greate margin).

Now, when we have finished this boring technical part lets start making easy money.

I suppose, that you have some starting money (5000+) to begin huckster job. You should have some perk cards to travel and vendor's tradings too.
Now we need some information about valuable items and their real prices. Youtube helps us. Bloggers are always ready give us such information.
This month top sales are (my own list):

• bloodied explosive weapons
  
• any bloodied railway rifles
  
• bloodied lever rifles
  
• any bloodied gatlings (ballistic and energy) and machine guns
  
• any low weight (-90%) non-explosive heavy guns
  
• any tesla rifles
  
• any handmade rifles
  
• unyielding armor parts (the best is AP,+STR,-Food water chem weights)
  
• plans for gauss/tesla rifles, fixer; dense plans and mods; Biv's recipes etc.

You should understand that some of this positions have real costs in caps from 40 000 till 200 000 caps.
So to sell or buy such lot, you need to have multiple accounts and multiple characters on each account (because of limit in 30 000 per 1 character)
Fallout 76 have huge black market acting in discord channels. But that is good for the fair hucksters like me.
So, our goal is to find out better analogs of this items for the cheapest price and sell them for much lower prices then real discord price
IMHO, I bought this game to have some fun and not to work in game and make real currencies (thoug this game was created for this guys)
Note: of course there is some old duping problem, but I'm not in topic, because I'm newbie and started playing from steam sale's period in may 2020
I'have a lot of quality items to sell without any duplicating needs.
So, we just "jumping" thru public servers and buying actual lots from another players.
Then we are selling this stuff for better prices from our machines.
E.g. good price to buy Bloodied Railway Rifle (one star) is 1000 caps. Then you may easy sell it for 10 000 caps. But you may sell it even for 20 000 caps.
You need to have some additional place in your stash to make such magic. Open your favorit blogger's guide and note weapon modifications.
Then you need to make the same modded weapon (weight would be significantly increased).
*the day next to "beard blogger's" video about Handmade rifle, I have sold 2 furious version of them 20k caps each (installing right mods), while this lots where on sale for the price of 3k caps for more then 3 weeks.
So, you should find out your own style to make buisness.
Bad lots:

• cheap plans (including all ultracite - real price is 20 caps)
  
• fastnacht outfits (outfits is overall bad idea because players who are looking for armor parts could not know your assortiment before they teleports to your shop)
  
• common outfits
  
• common weapons and armor (besides gauss/tesla rifles, lever gun - normal price 200 for scrap)
  
• I could not sell any of my junkie weapon for the huge amount of time, so I belive, that junkie guns is overpriced

My own best weapon I could find out is level 35 analog of guns for the price 60 000 caps (it is still have perfect damage, nominal 10 damage points worse then level 45 gun)
My personal acievment in making 30 000 caps is 15 min, while average time is 4-5 hours.
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Thanks for your time,
GL HF

Q: How to trade items between my own characters?
A: You have two ways to make this exchange:

• Subscribe to Fallout 1st subscription. Goto your private server and place some stuff in a large container (like freezer at railway station). Then go to main menu and choose another character. Goto your private server to the same place and take all yor stuff from container. Do it in one session. Do not leave the game!
  Note: Server disconnect could anytime erase your stuff in containers, so make this transfer as quick as you can
  
• Buy the 2nd account (or ask your trusted friend to help you). Your friend's/second account 's character would seize public server, when your main character would go to this character's team directly from the main menu. Use either conteiner or your second account's/friend's inventory (exchange interface) to accomplish this operation.

Q: How to transfer 20 000 caps between my characters
A: Buy the 2nd account (or ask your trusted friend to help you). Your friend's/second account 's character would seize public server, when your main character would go to this character's team directly from the main menu. Use exchange interface to accomplish this operation. Your friend's or 2nd account's character should sell some stuff (1 stimpack) for 20 000 caps to your main character (take money). Then he/she could buy some stuff from your another character for this 20 000 caps (return money). You should trust your friend enough to make such deals.
Note: Fallout 1st subscription do not let you transfer caps between your characters!!!

Note: all expensive items are commonly transfers using last method

My opinion: this *software product* was made against its users (e.g. wow has excellent post system for 20 years, but bethesda engineers have their own vision how to make true Bugout)

Q: How to buy 2nd copy of game in Steam?
Official bethesda.net support answer: Unfortunately, at the moment, the only way to purchase a copy of the game is to create additional Steam and Bethesda accounts, since when you buy a game on the accounts you use, the new game may simply not be displayed. To do this, you may also need to create a new email address to which Steam and Bethesda accounts will be registered.

*My note: 2nd account is much cheaper than even 1 month Fallout 1st subscription
**Additional note: To cancel your monthly subscription, you should unsubscribe manually on Steam, in other case you would pay automatically for each new month of Fallout 1st subscription. Steam makes no refund for such cases, because this subscription contains expendable in-game valuables

Better Inventory[www.nexusmods.com]
Save Everything[www.nexusmods.com]
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My personal thanks to this Genius[www.nexusmods.com] who makes our ingame comfort much better than original developers

All this vending machines usage experience had own backstory. I began to investigate this issue after viewing youtube guides on bloodied heavy guns builds. So, bloodied explosive rapid (lightweight) heavy gun is the top-tier weapon for this build. And the simplest way to gain it is buying from another player. I was naive newbie. I was started my way in fo76 with shotgun, but actually server-side damage registration for this type of weapon is bad. So, I have a lot of troubles during events, with empty-loot frags. I've spent more than 2 monthes on trading and still could not find out such top weapon*.
*Note: because real discord price of Bloodied Explosive Lightweight .50 Cal Machine Gun is about 150 000 caps and there is no technical possibility to sell such thing using vending machine
But some days ago I decided to investigate another similiar topic - how do they one shot scorchbeast queen? And there are some different ways to do this:

• using stack effects from bobbelheads
  
• bloodied unarmed build
  
• using junkie/stalker/cripple weapons

I have found out in my own shop level 35 Bloodied Cripple Ultracite Gatling Laser, I have occasionly bought from player for 500 caps couple days ago. It has all stock modules and fire rate below 200.
Without any duped bobblheads it makes insane amount of damage to the queen's head. That is not one-shot. But you may kill it solo on public server in 2 minutes. Main condition is consecutive damage in head (the only limb part of queen, another limbs were disabled by developers).
*Numbers of damage for one hit was common for this gun - just 11 (I have only +30% damage from "heavy gunner" perks). But actually health bar of queen was disrupted in seconds:
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And finally I have crafted this miracle from the 1st try. That is ultimate eliminator. Unpopular cheap gun which gives large fora to the 150 000 caps top legacy weapon.
P.S. Nice video about this "magic" effect