I'm planning on replacing the differential mount, as well.
I'm planning on doing each subframe mount bushing first, then swapping out the differential mount. I checked out the trailing arm mounts and they still seem to be in pretty good shape...was planning on these if I need to do an axle or new strut.
Crash, if you can find that pictoral please let me know. I've searched a lot...the best I could find was the description of the Baylor technique:
http://diymbrepair.com/easley/sframe.htm
There's no mention of having to drop the differential or hang the calipers here...is the write-up pretty accurate?
My car's a W116...not sure if that has any bearing as well, from what I understand they're pretty straightforward to work on back there.
Rob