Hi Rog. Yes the TVR will be fun, but not quite as 'rare' or as 'powerful' as the 500hp / 750kg 1963 Cheetah.
The TVR will be built to 1969 TVR Tuscan specs, with a period correct 289 ci.in. Ford V8; 4 speed; TR6 suspension; and Jaguar diff. The Tuscan is heavier than the Cheetah at 1000kg, but interestingly both cars share a 90" wheelbase.
Cheers, John