Holy crap! Didn't see this Discussion. Sorry for the late reply. In the future, the best way to contact me or ask any questions, is to do it as a normal comment.

As for the answer to your question: This and all of my mods add these parts to the game separately, so it's like choosing any customization option in the Armory. The Head is under Props/Helmets, the Arms are each in L/R Arm, the Legs under Legs. You can assemble them yourself, and if you want to, save the character to your character pool, so in the future you could get them as recruits. :) Hope this helps!

Thanks for answering Faizu's question, this helped me as well.