Richt he front sway bar is nto hard to do at all, it can be doen DIY. I have the manual, and we could do it ourselves. I believe there are only 4 brackets needed to be taken off, totalling 8 bolts.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.