I use these guys as they are one of the best that I have found in the country:Hey,
How much does it normally cost to paint the M6 factory wheels black and the calipers red?
OOoo, your car is gorgeous with the black wheels. I had thought of doing black wheels and black chrome exhaust tips for my Tubi exhaust but haven't gotten around to it.I have my wheels painted black (see the attached pic), it was dirt cheap. The whole process with tire assembly costed me about 40.000 HUF (~$200). Don't know about the calipers, but it shouldn't be expensive either. But this is the price i got from the painter, in Hungary, it can be different in your area...
Good luck with it, i'm sure you'll like it black!