The petrol station opposite the National Trust car park closed down about 2 or 3 months ago (March-April) there is another station about half a mile south on the old A3 near the Grayshot turning. The NT car park is pay and display or free for NT members, however it is not patroled very often and unlikely they will ticket a group who are just meeting up. The old A3 outside the cafe car park is now almost deserted and is without restrictions, could meet there if a car park patrol appears. I would guess if there were quite a few riders going in for a coffee and cake (it is expensive but the cakes are well yummy), so long as parking is sensible and money is to be make by the NT cafe, the NT car park patrol would surely turn a blind eye? There is additional parking behind the cafe, on grass, all good if it is firm and dry (take a bike puck) and I think this is beyond the realms of the NT car park patrol as it's common land, and while there the view across the punch bowl is worth seeing. Hope this info helps all that thinking of meeting up.
thanks tiggy for the advice. and yes its still on if people are up for it. its seems they are. i was going to wait until mid july to get final arrangements together but generally speaking it will be late morning meet at an agreed place and ill be.riding a 250 scoot with nearly 40k on the clock. hardcore.