Called to track and got the following info out of them......
Campsite (well patch of ground we can camp on): Behind Coppice / McLeans.
Facilities: None as such. Possibly not even chemical loos.

There are loos just inside the circuit to the right of McLeans though so if they open the track early enough it shouldn't cause too much of a problem.

We can take: Small BBQ. 15kg gas canisters. I didn't ask about beer as I had a blonde moment and my mind went blank. (Seems to be a post LM thing...along with the acid flashbacks.

)
We can't take: Generators.

Price: Free

They are currently unsure as to what the set-up will be with regards to whether we can camp next to our cars or have to park elsewhere and walk in. I would hope the former as it's a smaller meeting for them compared to the Moto GP.
As to Speed Chills at £59 - no thanks. I've paid £25 for my weekend ticket and I'll rough it thank you very much. As Andy says - we are a resourceful lot and can fend for ourselves well enough.