I believe the Parts Shop price for the engine wiring harness is about $550.
A typical Mercedes inpendent shop should charge between 2.5 to 3 hours to install it for you, or you could DIY for free.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".