ok
www.driftmotion.com has the 1jz bellhousings... if you have an 89+ front crossmember, the 1jz and 2jz bolt up. if not,
www.bicperformance.com has adapter brackets for the earlier style mounts. if you just need actual motor mounts, get the 2jz ones from toyota or a junkyard. no need to use 1jz mounts specifically.
also, it's not uncommon for certain sensors to be common between different models of toyota. but just because the 7mgte and 2jz share a cps sensor, which isn't really worthwhile to swap over, as any decenly complete 2jz will have it's own, newer cps sensor, that doesn't mean the ecu is the same. different car. different ecu. there's a lot more the ecu controls than just the engine functions... it also does all the gauges and other interior stuff, deals with the tranmission... different fuel maps/curves, etc. just how it works.