need advice building a supra-parts

[crazyasianr6]

i have just purchased a 95 supra non turbo. it is completely stock except for an apexi exhaust. its had 1 owner and has 100k miles. its a manual. i have basic knowledge on parts. but i want to start off by turning the car up to 400-500 hp like quickly. would it be easier to replace teh engine with a 2jz-gte? or keep the 2jz-ge and put a t61 turbo kit. and obviously there are other parts. what parts do i need to obtain atleast 500hp with about $5k for upgrade money.