Wow way to be a douche coscom...it took me 20 minutes to write a reply and then i click submit button and it had logged me off...>___> god I hate you.
I like the idea of it being a nice fabric like satin. I found this Stretch satin at joann's a couple of months ago and now that's all I make stuff out of...well not always but for the most part. It has a shinyness to it without it being super shiny like most satin is.
For the coat I agree with hack7oriole about using twill, I made my gil coat out of twill and the good thing about it is that it keeps it's shape fairly well.
As for how to attach the coat I agree with the idea of sewing velcro, or you could add snaps to it as well.
Why is Gil the punishment to losing a bet? D8 he should be the winning price
I also used my own hair for gil but mine does that weird seaweed dealio without even having it to style so it was easier for me. What I suggest is yea using a curling iron to make wavy strands. Not super curly though, his hair is messy and wavy. A lot of people go too insane with the curling iron from what I see O_O.
As for the gun, it's similar to this one http://www.amazon.com/Cavalry-Pistol...551759&sr=1-31
with a long cylinder and a short butt...of course it's different a bit because his has certain details on his gun.
I hope that helped! Now I'm going to try to submit this and pray to god that it goes through...