You are going to be looking at an exhaust manifold, turbo, intercooler and piping, ECU tune, that's just the basic hardware. Then you have to get someone to do it if you don't have the experience... It's going to cost alot... Possibly well over 3G.
Or you get the 1.8L turbo out of the GTI, out of a wreck and drop it in with little or no engineering.
I would do the latter, but that's just me, and I'm not spending your money.
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