I'd do C32 brakes rather than E55 brakes. The W210 E55 rotors are like $180/ea. You can get C32 rotors online for like $50. C32s are 4 piston calipers as well.

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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

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