Why don't you have a look at Bernie's Historic V8 Series where the only stipulation is that the car was originally fitted with a V8. There are three classes, FIA, Road Going & Modifiied.
The first meeting is with the CSCC @ Snetterton in April, there is a thread on here about it. If you need more details pm me & I can give you Bernie Chodosh's details.
BTW is it the red & black one advertised recently in US?
Details & pics would help.