Yea ive got that question a few times and its really hard to say cause I bought a donor car with 4k miles on it. I guess it all depends on how far ur gonna take the RS3 engine which will dictate transmission and fuel.
So thats a pretty broad question that I really dont have an answer for. I think if u just did the swap itself with no motor or tranny work and wanted to just thro some bolt ons I think it could be done for about $50k.
Really depends on how much u pay for the donor car and trust me u will need a whole car! Ive used so much shit from the RS3 its crazy. I was just gonna buy a motor and trans with harness for like $27k but I needed the fuel tank, brackets, axels and quite a few other things.
Its a lot of labor getting the wiring harness to marry to the the Golf R. Thats Dave the Madd scientist! Absolute genius when it comes to wiring!
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