Getting rims powder coated
I did my own before powder coating places popped up everywhere near me.
Already owned the sand blaster
I bought a powder coat gun from princess auto (harbour freight) $72.99
https://www.harborfreight.com/10-30-psi-powder-coating-system-94244.html
I also bought an infrared temp gun to check temperatures in the oven.
Bought my powder from prismatic powder
Powder Coating Colors & Custom Coatings | Shop | Prismatic Powders
Used an old kitchen oven for curing the powder. I already had the oven but you could find a cheap used one on the classifieds. I dont reccomend using the wife's oven :)
My labour was free.
There is a learning curve to it, but the I did it myself factor is satisfying. I have powder coated tons of crap now for myself, since I own the gun :)