V, I"m soo happy for you. Yes the mk 2 are so good and I'm glad you appreciated them. I know some who have run them on the AX5 Twenty for a spell and they worked great. Remember that from 100hz down, they are run off their special amp. You AR is one of three amps that they are most often demo'd with. It's an awesome amp to use. If you can ever get Richard's amp, THAT is the amp to use. Nothing I've heard has come close to that. I love it with the Ayre KX-R for speed, clarity and timbre. You can't go wrong as you are using well engineered gear and they pair so nicely together. Remember that Richard LOVES AR gear and often does rooms with them at shows.
As for color, go for it. I love the Audi Havanna Black also as it has metal flecks of copper in it, but you can't really see it unless you are close. I'm about to get a pair of Quatro's and was thinking about asking if I can get mine painted too.....on the ropes there, lol.