We have a 33m by 12m pitch. How i worked out capcity was that if we parked up facing outward, right upto the edge then with 5mx4m per truck we can get 16 in there. 8 in each direction along the 33m side. Also facing outward should allow everyone liberty to arrive and leave whenever.
This should give us with some spaces to use as communal space and also the odd fellow ( like me! ) who does not have a roof tent can pitch a oztent or something similar directly behind or alongside the truck.
5m by 4m isnt a huge amount of space per truck.. but i am guessing a bit of snuggles amongst friends is ok
Also folks bringing families might want to park in the middle ( for most quiet, private area ?) and we can setup shelter and common space on the south side.
I am guessing everyone is self catering, however we will try and get a common bbq going on the friday evening. And if enough folks pitch in, then repeat on saturday evening.
I say all this in full recognition of the fact that plans of this nature for an arbitrary arrival order almost never work out but hey..