If your going the route of wheel replicas search the wheel your interested in on eBay they will most likely come up the prices are unreal. I'd stay away from craziness concepts do a search on it for yourself. Not trying to bash just trying to save you some trouble.
I've had black chrome cobra R's and they looked good for about 9 months then started to chip/flake badly. I also will NEVER recommend buying anything from Wheel Replicas. I had to fight them for nearly 2 months to get them to honor my warranty on those wheels.
Mine are used, originally from AM and they were all a perfect match. I think you just have to order from the same place, that way you can bitch if they're not the same shade of darkness. Mine are also for sale btw! lol