i think bring it back, but with ridiculous crafting requirements, say, 200% science + Armorer 3 and a second Armorer 3 with 200% repair to assemble the pieces at a seperate bench, at a special workbench to make the servo's and such out of alloy and electronic parts, to make the plating out of ore or metal parts, make it in pieces, 2 servos and 4 plates would make a boot, a boot, shin plating and thigh piece would make 1 leg, make 2 legs, then a torso, then arms to make the chest armor. say it would take 4 alloys and 5 electronic parts to make 1 servo, 1 alloy and 5 metal parts to make one piece of plating. make it a HUGE team effort just to craft a single suit, with the constant threat of partially completed pieces being looted and stolen.
also make it impossible to take off by yourself, same armorer 3 with high repair would have to use repair on you to get the armor off you, you would also be unable to carry an inventory outside of ammunition and weaponry. turns the player into a battle tank who is useless otherwise.