Are you into restore work or show car. .. for restore you work on factory specs , for show car you work on more things which amuse people like lights, lift suspension , subs for bass.. for fast car , you work on lighter stronger tube frame, drivetrain, mechanics, suspension, brakes and remove the interior and other weight. companies make performance parts you will have to import starting from bushings, links bars built diffs, performance shafts. when you collect all parts you need you start fitting work. because 2jzgte and additional boost, you would need parts equalent to supra. toyota crown is not fast car, its luxury/comfort type, its suspension is not for speed. so decide what is yr focus, you cannot have everything,, that will make a very high budget. Also the person working for you should know. tuners charge for advise, decision making, time. not welding, hammering, swaping engines only, wrong driveshaft, suspension and all yr work will end in loss
