Hi Mark
Yes 5x5 seems right.
I am taking a 16' caravan with 'a' frame about 19' long UUUMMMM should be interesting in getting it in.
I know last year they were pushing the caravans down the bottom of the site towards the race track, this year I have booked 2 pitches, 2 cars 1 caravan and a tent (hopefully), and am taking plenty of extension cable for leccy as last year I had 2 cables about 50 metres and only just reached, and I had people hotwiring off my mains unit, and people hotwiring off the people who were hot wiring of off mine.
Pete