Ask if any of your friends have access to a sand blasting cabinet. At the shop I work at the bosses don't have a problem with me using the blaster on my off time for restoring old bicycles. Then find a place that does powder coating, ask about reduced rates for having the bike painted with left overs. There's a few places here that will powder coat small stuff for pennies as long as you ask them to use left over powder, and you can wait a while for things to line up for them.
Just some things to think about...