Clive, DEFINATELY talk to Geoff Taylor before jumping in any direction, he has no bias to any make and is vastly experienced in all of the options. Its only a phone call but it may save you a lot of money and frustration. Frank Catt
Ian, my design was for 103 - 105 , and these are still being used by several original GT40 race cars for testing etc, particularly at Goodwood. The other criteria was to get this performance with very little ( no ) performance loss, these are straight through but with some ingenious internals...
Douglas, there is no one answer ! it depends on the actual suspension / hubs etc you are using , there are many different options that can be used, and SGT and AK have used several . Get it right before you buy your wheels, can be a very expensive mistake to get it wrong !