1. I didnt although people do bolt them together after its around your neck and back. I simply used a heat gun to perfectly match up the neck and collar and use velcro to stick them to each other, its unnoticable imo and stays together well.
2. Pop it in the oven on 350 for about 2 minutes at a time untill you can work with it a little then bend it where you want.
3 This sounds wierd, but you want to make sort of a thong out of it with elastic going from each end of the butt/back plate on the ends, and a piece of elastic from the bottom of the cod piece to the middle of the butt plate giving you a wedgie. you can sew a loop in the jumpsuit where the buttplate meets the cod so it wont fall down while you walk.
