And going stock NA to stock TT set up isn't crazy expensive if you do it yourself. Just replace what needs replacing. I'd at least want larger injectors and a boost controller (something I'd do anyway if a bought a nice stock TT).
I have a full conversion set up laying around right now and its actually been hard to find a clean donor car that's worthy of the swap. If I don't find a clean roller soon my spare TT motor and set up will be for sale.