A4 3.0 Upgrades...?

Hey guys. Hope you’re all well. I have a few questions. I currently own an Audi A4 3.0L 6spd (01E trans). I would like to know the following:

How many parts are interchangeable between a 1.8T & 3.0L.

Is can a 2.7 bottom end bolt up to a 3.0?
Would I be able to change the manifold up top for a turbo manifold?
Is it better to build a 3.0 or just swap to a 2.7.
I also wanna do a front clip of a B7. Anyone have a vague idea of the lengthy process, as well as all the tools, & parts I may need?
Do the S4-S5 Peelers fit on the B6 hub without having to install spacers, or open the hub hole wider?

Currently looking to do a 500HP Quick acceleration car.
Which would be more preferable?
Also if anyone has interior (B6-B7 & dash unit of B8s) I would be happy to take them off your hands if you’re no longer needing them anymore. Thanks.


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So nobody can help me with this?


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No idea how you'd go about this and no idea why, surely you'd be better off starting with a B5 S4 in the first place? You can get far better gains from the 2.7 turbo than messing around trying to change up a 3.0, it would cost you more than what you're trying to do?