I believe this would be a great performing and great looking big brake upgrade for our cars. I have read that to total cost with all OEM parts from the dealer is around $700. 13.6" drilled rotors and AMG/Brembo four piston calipers would be a bargain if that is all really costs. Is there any MB dealer selling online at a discount? I can't find these calipers new online anywhere.

It sounds like all you really need is:

2 C32 calipers
2 C32 rotors
set of pads
4 longer caliper mounting bolts

for the cost consiouss (ebay)

Calipers: $200-$300 per pair
Rotors $220 per pair aftermarket new
pads $65 new ceramic pads