who can powdercoat rims? or paint for decent price?

yep, and did you get them back the same year you dropped them off?!!? They are slow as shit for small jobs. understandably, they make a living shooting big projects, not $300 in wheels. (actually making about $200 - materials/labor)

But that is about right. Powder is cheap materials wise. about $12 will coat a large wheel. Its sandblast time to strip, prep and having an oven large enough, and controlling the temps well enough to do it professionally and make money at it. Which they do on frames, chassis’, etc, projects paying a lot more then a set of wheels.