Over the holidays I went to spend some time with the family in NC and found an awesome shop in Greenville, NC. They replaced my Steering Rack, Fluid, Swaybar bushings and links for around $250-$300 (I can't remember) and are awesome and professional!
Just tell them Cancer Researcher from Philadelphia sent you; the guy who is the doctor.
They also work on Volvos, BMW's, Rovers, Lexus, VWs, etc. But love MBs
These guys are very dedicated and knowledgeable.
They are both old (and new) Mercedes lovers, especially diesel.
If you are reasonably near by give em a call, tell em I sent you.
They will generally beat any other shops price on a job too.