Used TVR 1999 for sale - PistonHeads (Ref 1708335) Here's the car that was recently featured on Wheeler Dealers. Yours for 17 grand, about 3 thousand more than what they sold it for on the show.
Probably not a bad deal as Ed did the chassis and all. A buddy has a Cerbera motor he is going to put in a '70 Vixen S2. Got the motor in England about 5 years ago.
You can, but it's not cheap. There are LS6-powered Sagaris for about $150k. RHD is a bit of a problem, though. Not legally, just living with it in a country that is LHD.