2jzge turbo project

what up i have a 93.5 supra 2jzge i want a turbocharged car i was going to do an engine swap and a single turbo upgrade but i am kinda leaning toward suping the GE engine up engouhg to push 700rwhp and kinda doing a project, i looked for kits for the GE cars they are kinda expensive 4500$ for a t4 turbo and an intercooler and stuff i have all of those things off of other turbo projects me and my friends have done.so i really can piece the kit together all i need to puchase is a big turbo and manifold. i go pipes,BOV,guages,intercooler, i can buy the turbo and parts cheap cheap i just really not famiular with the 2jzge engine i duno what all parts imma have to replace and build up to get the power im shooting for. anyone can help i would appericate it.