I'm with Matt, Id prefer a FGT TT.
Not a fan of european exotics, They are nice if you are going through a midlife crisis or want to impress tennagers.
Personally, I think that totally fucks the car up. An LP560 or a Gallardo is fine. I wouldn't turbo any Murcielago, especially a 670-SV. It's a fairly rare car and let me know how much fun it is taking out that entire motor and turbo system every time you need to change the clutch...
The same guy has a TT LP640, TT Nera, and a TT Superleggrea.