its relatively easy to get your rims powder coated but not cheap i used to powder coat huge pipes and the process was simple they welded, cleaned, sand blasted, powder coated(1 coat primer, 1 coat clear, 3 or 4 coats of color chosen and 1 more coat of clear) all while baked in the oven at 500 degrees between each coat. but remember this was the process for us i dont know what it is for rims.