Why thank you Mr datto1000wagon...
Yes I have done the swap, and it's actually not as difficult as people think it is. It's asif the motor was made for this car. The diff you don't have to change right away, mine has the original BW in, and apart from spinning either of the wheels through most of the gears, it's held up quite well. I'm now in the process of locking it and trying to get as much/little time out of it as possible.
If you leave the diff in tact for a start, you won't have to change the entire propshaft, you only need to have the front uni changed to fit whatever gearbox you will be using. Apparently the K/T50 gearboxen bolt straight up to these motors. I used a W58 Celica/Supra box, as I was always going to make as much power with it as I can.
One more thing, if you do open the motor up for a fresh set of bearings and gaskets, do yourself a favour and install a restrictor in the in the oil gallery which supplies oil to the head. Bring the hole down from 6mm to 3-3.5mm. These motors have a tendancy to pump all the oil into the head and starve the bottom end, handing you dead bearings rather soon. The oil hole is in the front of the block under where the dizzy sits, or would sit.
Just ask if you need to know anymore, I'll give you as much info as I have available.
Here is a link to my buld again...
kululadotgroen