Guide to purchasing BBS wheels in Germany

I am potentially looking at purchasing a new set of CI-R wheels for my F82. I will be visiting Nordschleife in Nov to end the season. I am coming from London for a weekend.
BBS are very expensive here and wondering if i should buy a set while i am there. Any suggestions on where to buy it from?
CI-R in Bronze for Alpine White F82comp.
I could use some suggestions for other colour that will look good on the car.