you can also try www.silverstartrecycling.com
They are a salvage yard and I believe potomac German Auto has lots of used parts as well.
If 280CE's trans willw ork, that might be a nice change up.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.