A lot of guys have bought this from Bergwerks. They are a first class shop.
JimF installed it in his '95 S500 coupe. Same engine as your car, I believe.
Many guys with 500E's have also installed it.
Try posting on the hot rod forum.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".