Tony,
I stayed at:
http://www.parkfarmhouse.co.uk/ When I went to a Ron Haslam thingy a few years back. Its very close, and I seem to remember there were a load of barns etc, they might let you securely park a van in (don't know, but worth asking). Also, I was given a two bedroom suitey thing, which might be just the job if you are taking the whole family . Ian