FX-16 dash would probubly work, there are engine for a quick jump in horse, like the 4age, that drop straight in, i think that MR2's came with autos(but rare), so a flexplate from an mr2 should work so you can keep the auto trans,
also you need a fuel pump, and wiring to be done amoung other things
also you need a fuel pump, and wiring to be done amoung other things