I would also be interested in camping over - although I won't be flying in, I am a 1hr 15 min drive away and I am going to be there on the Sunday also, as it's a charity day (free flights for local terminally-ill children). Camping would allow me to have a few beers in the bar - somthing I've never done at Sherburn due to the long drive home.
There's an area where I'm sure it'd be OK to pitch tents (round the side of the porta-cabins for those who are familiar) which is away from the manouvering area and less than 30 seconds stagger from the bar.