look for "jdm" (japanese domestic market) engines. find the engine model and search by that, the engine might be in other toyotas
be sure that your engine will fit emission requirements for your state
quick Google search yielded these:
http://www.tigerautoparts.com/2jz-gte-dohc-engine-5-speed-transmission-twin-turbo-toyota-supra-124.html
http://www.jdmenginescorp.com/engines/toyota/
it might be easier to buy a new car
