I agree, the cost of a Tie Pilot gear is about $600.00, the jump suit can be made from a black Dickie's, I can part with some boots size 9, they are pleather for $25.00, I can give you some front hoses free.
I know a person who fabricates the head gear, if you want his name. He also makes Vader, and imperial red guards. Give him about 3 weeks.
He is from Arizona, contact via Facebook, accepts PayPal.