Hmm. Can't help but point out a comparision - a (chipped) VW 1.8T beats the VW 2.8VR6. Who's going to hear the engine once you've installed an empeg?

Seriously though, if the 2.0i can 'be tuned to buggery' and you already have a suitable supercharger then I think the decision has already made itself. Contemplating (A) simply for the sound is little more than a distraction into the land of romantic fantasy IMO. It sounds like spares might be getting harder to find for that too. I'd favour (C) over (A)... at least for the added burdens you'd be getting some real grunt.

But face it. You want to tinker about with that supercharger. That's the only reason it's sat in your garage for so long... you've been waiting to find a use for it, and here it is.