Mark, I repainted an old range hood from my late father's house that dated back to the late fifties. I had stripped it down to bare metal and took everything off. I took it to a paint company in town that specialized in powder coating, spray, etc and had them powder coat it with copper colored paint. It wasn't cheap, $75 min, but it restored a functioning hood to its former copper glory. The technician said that even though I had stripped it, they would powerwash it, dip it and prep it to receive the powder coat before the actual application. As already stated, car/motorcycle enthusiasts would be the best bet since it sounds like you want to do it yourself. Post some pictures as you go.