I'm involved with discussing this with Frewer who still have all the moulds of the Group B and wide tourer shells (who didn't run the Frewer 405!) they made.
The shells that have been chosen for the first batch are still undecided. The 6R4 is a definite, the 205 was chosen because Alex (in Australia, it's cheaper for him to get the shells then forward them to me) wanted a couple of 205s, but as no one else wants them so we might get RS200s instead. We would also need to decide which RS200 we want, Frewer did the original short wheelbase one (see picture above) and a long wheelbase one to fit later buggies, which wasn't pretty. The idea was to keep it quiet and see how things go with the first batch, if it all works out start taking orders for others.
The 6R4 won't fit modern cars though, wheelbase is only 250mm. I have my own plans to make a bigger version for modern chassis if there is enough demand (as the cost of producing the patterns aren't cheap!) with others to follow by myself, I've yet to get a Kamtec shell I have been impressed with and people I know have had problems getting Kamtec to make shells.
Got a good collection of the old shells myself
And the good old 6R4
