I found the back brakes to actually be easier than the fronts (on my W140 at least). Hopefully, it will be the same for you.

__________________
"It's not about how fast you can go, but how well you can go fast."

Bob in Richmond

'97 S320 (LWB), Ruby Red Metallic, 73k miles
'97 S420V, Smoke Silver Metallic, 155k miles