I guess the one shop that many members here have had success with and recommend highly is Mr. MB Motors in Tarzana, CA:
Enrique is the owner, and I even spoke with him today.
I made an appointment for next week to get my head gasket replaced, and to do the valve guides and seals.
If you're not familiar with the area, Tarzana is about 15 minutes from Los Angles on the 101 Freeway, headed North / West toward Ventura / Oxnard.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".