To kick start this again, how about The Barn at Coworth Park? Could do a Sunday lunchtime? It'll be the last showing for most of us and I'm keen to find some locals to work with on detailing and mods.
The Barn at Coworth Park
Coworth Park, Blacknest Road, Sunningdale, Ascot SL5 7SE
01344 876600 https://maps.google.com/?cid=7336072508595977904