I did the job on the wagon in 4-hours using a Harbor-Freight scissor tranny-jack to position and support the diff. No need to drop the exhaust or loosen any driveshafts. I think I can do it in 3-hours next time.
Also, I'm going to get the rear diff bushing tool since I go through these every year with my aggressive driving and C36 engine.
I took the wagon to the drags the next day, and everything worked well and is still nice and tight.
I may venture and do the 500E as well, but dropping the exhaust is something I just won't do, if it's necessary.
I hope Subman reads his emails. Too bad the link to his 2.82 diff swap is not working.