tbh I think the event should be more than a glorified RR session.
What do you suggest, as its very difficult to cater for everyone's taste?
Already suggested quite a few ideas.
The best would be a multi-interest event with an open area for general show'n'shine, some track availability and perhaps a mobile RR.
It's by no means viable as it's definitely too far north but Crail, an airfield, offers track action, drag strip and plenty of open ground for parking so if we could get something like that but more accessible then I think that would be a winner.