I put one in my Suburban. It's great.
Since the 700R4 is slightly longer than the TH350, I found it easiest to move the engine mounts forward ~1.5". That required lengthening the exhaust, using a shorter fan shroud and moving the shifting linkage pivot forward.
Any 700R4 from '86 to '92 ('93 car) will work fine. Some people prefer the '87-'92 due to improvements (forward accumulator added).
To mate the 700R4 to a NP205, the easiest method is this
advanced adapter