I don't know if you have the car already but the early GS300 is a better place to start cuz it with a 2JZGTE in japan. Aristo cuts can be had for 2K--you'll need this if you go with the LS anyway. It has the necessary front sump. wiring up the tach will be a doozy though--8 cylinder to 6. Big fuel pump will be needed. Might wanna go external Bosch 044 w/ a surge tank. Motor mount will need to be researched/sourced. I remember there was a guy who did a full write up with pics.
Anyway, that is as far as I can help ....kinda sad I guess . . . :tapedshut:
Cheers