Rear axle swap basic Qs: Safe lifting and jackstand points while pulling rear axle?

Another rookie question or two- these might be obvious to everyone but I just realized that I don't know. The story of my life! :D

As many times as I've had the rear end of the Dart off the ground, I've always blocked the front wheels, jacked it up by the differential and put the jackstands under the axle tubes. This is obviously not an option when pulling the whole axle assembly. What do you guys recommend for safe points for the jackstands?

I won't be starting the job until next week at the earliest but I started soaking the leaf spring bolts (which have presumably been in place since it left the assembly line in October of 1972. What else should I do to prep? Any words of advice are very, very welcome!
I'm glad you asked!