I'm also Agent HUNK fanatic. He is my favorite characte, i'm making agent hunk cosplay costume and when it's ready i will use it on movie which me and my friends are planning to do i use british army gas mask replica and PASGT helmet i hope that my costume would came great as yours ^_^
The helmet is a MICH replica you can find at an airsoft store, a black flight suit, hatch operator gloves, a replica Load bearing vest with pouches found on evike.com sewn on. I'm sorry I forgot where I got most of the stuff.
I'm part of a RE fan group that is making a fan movie. our site is [link]