I'll have to double check my notes but I'm pretty sure you can run the complete 80 Series diff however you will need to run the 100 Series e-locker side gears (32 spline). At one point they were still available individually from Toyota but I've not checked as of late.
The answer is Noooooooooooooo.
I have done extensive homework on it because I wanted to buy e locker set for my 105 series and I found that 105 series front differential is same as 80 series and rear differential is same as 100 series.
So the short answer is that 100 series rear differential is different from 80 series rear diff.
I have asked the same question last year on LCOOL.ORG.