How much power are you aiming for?
I know I already have a 2JZ lying around but my forged build for that is coming at less than £4K. Still need the adaptor kit (£2Kish), gearbox adaptor plate & clutch (£2k ish) & my turbo cost me £1700. Thats less than £10K in parts but I'm looking at 7-800HP, you drop £10K into going FI a 350z then you will be lucky to hit 500HP.
Your more than welcome to come along and check out the build once it gets started in a few weeks