As far as I know Revelation is out of business. Carl would probably be the easiest to work with and would do a really nice job.
I hear you though on whether it is worth it or not. The wheels in this picture
are the ones I was looking to have coated. I wanted a dark center and polished and clear coated lip. At $60 per wheel for powder coat plus $40 for mounting and balancing plus $75 for sand blasting plus the $300 I paid for the wheels I would be at $615 for a set of used 15" wheels.
I could have bought a nice set of new 16"s for that, so I had them sand blasted (they had a couple layers of paint on them), polished the lip myself, and painted them my self, for less than $100 altogether. I think they turned out really well, and for summer only wheels they held up well enough.