Not sure if you're still after this info, but a mate has recently mated a zfhp22 auto box to his 1uz. He used the bellhousing from the Lexus and chopped two inches off the back, had a new plate welded in and machined to fit the auto box. He then madethe torque converter from that box fit the 1uz flex plate with new supporting 'tabs' welded in. This is just going by how he explained it to me, there could be some errors in the way i've translated his explanations. The guy in question is a Forum member on here (I think) but couldn't tell you his user name at the moment. If you need any more information, just post a reply or PM me and I'll see if I can get him to post a reply.
Lee.