SL/R107: 560SL brake pads - sensors

The existing pads don't really need replacing yet, so could I get by without replacing the sensors? I have not dug deep enough to see just how hard a DIY project this would be. I have a decent price from a really great shop for pads/sensors, but if I could save 50%...I might do it myself.
Any feedback is appreciated!!
No need to open brake fluid valve.



