Quick update:
Ben Hau did a good job fitting my rear bushes in 3 hrs, and showed me that the the originals were indeed split, but not that bad in his opinion.
He says that the rear geometry is sound, so probably not the culprit with regards to pulling left.
He recommended a good tyre fitter/ Alignment specialist in Dudley to have the tracking done (again) as they have the correct set up on their machine.
The rear driver side un-even tyre wear is very common on the Gen 1 apparently, and not a lot I can do other than go heavy duty tyres, which I already have. Still can't believe that Toyota don't have a way of adjusting this part of the suspension set up.....:(
The very annoying rattling from the passenger rear door area is still as prevalent as ever.
I've removed the door card and checked for anything untoward-can't find a thing there either.....at a loss to what it could be now.
Also removed everything from the car not bolted down, and put foam around seatbelt mount bolts, and behind plastic wheel arches.
It could be the door itself on it's rail, but the driver rear door rattles just as much when wiggled with the door half open, and doesn't make any noise when driving so not convinced it's that either....
Doing my head in.