The swap itself is not too hard (swapped in a W58 into a Mk2 with 7M-GTE that had an A340E), but a bit of a pain.
Suggested new parts are flywheel bolts ($2 ea from Toyota), new fill and sump plugs for the gearbox and a new rear seal.
I didn't have to bypass the NSBU switch, but then also had to run separate wires to get the reverse lights working, so my luck may be related to the dodgy wiring (the car was bought with the 7M already in) that I have discovered.
I also have the auto ECU.
Here is a pic of my clutch (6 puck sprung centre custom jobbie form Adelaide Clutch) & PP (2000lb Barry Grant modified item)
Haven't driven car yet, but clutch doesn't seem to be heavy at all