You should try to do it yourself. It's really not that difficult.
Just need an oven big enough to fit your wheels!
(Just don't tell anybody you cooked your wheels in the oven and you'll be fine!)
It's just like spraying anything else, except with a babypowder-like paint, and don't touch yourself with the spraygun, it is electrostactically charged, and it hurts!
Ric-H0