why not just buy the equipment for powdercoating and do it yourself. you need:

- kit w/sprayer and power supply - $125The Eastwood Company Caswell Inc.
- air compressor & tank - borrow one or under $100
- powder of your choice - $ depends on finish and quantity? link
- old, used electric oven - $ 50? or less

after you're finished, you can sell it all, or charge your friends to do their parts for them.