Advice on 700r4 swap

[Rspaeth]

So I'm just starting a body off on my 71 and think i wanna swap the turbo 350 for a 700r4 overdrive tranny. Currently have a tired sbc but think I'll do a 383. I will be using the 205 transfer case that's currently in the blazer.
I'm assuming I'll keep the same motor mounts and have to move the tranny crossmember? Also will the linkage from the turbo 350 work on the 700r4? Lastly, how will the new trans affect the location of the transfer case?
Any info would be greatly appreciated!