http://cgi.ebay.com/ebaymotors/aw-cgi/eBayISAPI.dll?ViewItem&item=1808620649
This Ebay auction is for a complete front Brembo Gran Turismo brake kit and OE C43 Rears. This complete brake system includes the master cylinder and free shipping to US addresses.
Everything you need to complete a big brake upgrade to your C class is included; calipers, rotors, brake lines, pads and master cylinder.
These came off a 1999 C43 with only 6k miles on it.