Gloverman, these base plates you get, do they include the connections for the bell housing? After my trial fitting of the 1UZ into a Volvo 242, the original rear sump is useless so I have to start from scratch. To give you an idea of what I'm up against, only the back half of a rear sump metal bowl would fit behind the cross member.
As I see it, all the sump bolts will have to be on the outside of the flange and the inside edge of the flange would need to be straight and not follow the casting of the motor. Also a large rectangular section would need to be fabricated to sit behind the cross member, but the connection to the bellhousing would need to be considered as I'm using a manual gear box.
Do you have any pictures of the flange and any of the sumps you've made. What cost would there be in getting a flange from you and what material would you suggest.
Cheers