A transmission jack isn't necessary if you have two floor jacks, one for engine, one for tranny. E12 reverse torx head bit with long extension is needed to access the two bolts at top of bell housing through the tunnel. Don't try to use a 12-point socket or you'll strip one or both of those bolts. Replace with hex head bolts. R&R the tranny/transfer case as one unit, it's not that heavy. Use new strap bolts for -U- joints, which should be replaced as needed.
It's a little easier to line up the tranny for reassembly by suspending it from the tunnel with a nylon strap around a 2X4. Cut the heads off two 5-6" bolts and notch one end to use for guide pins to line up the tranny.
Biggest PITA is probably the TC linkage. With three sets of hands and a liesurely pace, job should take a day. Good luck.