You can also investigate places that do transport truck rims. They most likely powder coat. Was looking at that last week at a local company that does truck rims. He says my rims will cost about $40.00 each to do - that is acid bath, sand blast, metal prep, primer and then the powder coat! They will look good.
Now I just have to decide if I want them powdercoated or if it should be hot dipped galvanized. Seems both processes are available locally