Just stumbling upon this thread, and pretty excited about it. Can you clarify what you mean by 'wired the Toyota sending unit'? Having the gauge function properly is a significant part of a tank swap, IMO - excited to hear that it can be made to work.This thread talks about the ford tank.
As for wiring, you can rewire the ford pump and it will work, the sending unit will read backwards, so I wired the Toyota sending unit and added the lead for the low fuel light. .