Yeah, there are definitely a few routes to go.
First, professional powdercaoting which will run you about 40 per wheels.
Next is professional painting which is more like 100-150 wheel.
And last is DIY which goes like this...
While I would classify the DIY as efficient and good enough... it does require time, patience, painting skill, a place to paint, vehicle downtime, and a bunch more stuff that I don't have.