So, has anything been decided on a venue & date yet? There appear to be lots of options - Silverstone, Bruntingthorpe, Donington, Oulton Park. FWIW I reckon it needs to be June or July to get a reasonable chance of half decent weather otherwise people won't get their precious babies out of the garage in the rain and the turnout will be c**p.
Need to do something soon otherwise time will run out. Perhaps do a survey and go with the majority.