I used to get a lot of parts ordered through City Toyota in Elizabeth Street in Melbourne. When I didn't have the part numbers required I would go in mid-week when they weren't so busy and they would go through their parts database to help find the part numbers for me and then order. Castle Hill Toyota in NSW also do a lot of parts for grey import motors. They would know pretty much all of the part numbers wihtout having to chase them up.
I have part numbers for a heap of other parts, but not the rear main. I am 99% sure though that it is the same seal as used in the standard 4AGE. If you need any other part numbers let me know and I will see if I have it.
