I believe my brothers 85 380sl only cost him like $500 to have the rollers redone, with the lifters I think at our local independent mechanic here in southern california.
Your engine should be pretty much the same as his car.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.