TVR AP Racing callipers & 283 mm Cossie discs

[900T-R]

I notice there's a few cars about with above combo using early Cerbera 4.2 or early Tuscan callipers and this has always stroke me as the optimum for cars with the early brake system and 15" front wheels. I assume there'd be a spacer or bracket or alternative calliper carrier needed to bolt them to the Chim/Griff uprights, but never found a source for them (Dulfords for instandce will gladly sell a pair of new callipers at a price quite competitive with brands of lesser reputation, but doesn't do the adapters).

Can anyone who runs or did this conversion fill me in, or even provide me with a drawing that I could give to a machinist with a good chance of the callipers fitting properly?

Ta muchly in advance