www.********.com has Monroe Sensa-Tracs for ~$50 each. MB + Monroe doesn't click in my book.
The prices you have add up to about what's offered through FastLane. FastLane offers Bilstein HD and Sachs with Sachs costing more than Bilstein. Or you have pretty good prices for pairs.
Sixto
95 S420
87 300SDL
83 300SD ... $950, see cars forum