I'm helping out a bit on the show this year so may be able to answer some of the questions posted:
Camping for over night campers will be either on the showground area where the event is happening, in the bottom right of the area if you look on google earth, or into the woods adgacent to the showground, not around Elvaston Castle in their other areas.
Beer will be provided by Tollgate Brewery, local company, local beers etc. As its a family event, and the councils stipulation, there will be a designated area next to the beer tent for consuming their beers.
Entertainment given by Les Stroud and companinons.
Lofty Wiseman, Les Stroud, Perry McGee, Ben McNutt and others giving talks.
Loads of activities and demos that are free, a few charged activities, but check out the website for all you can do.
Hope that helps somewhat, looking forward to meeting some of you, been reading much more than posting here so will be nice to put faces to names.
I'll be one of the guys wearing our customary tops so we can be distinguished from the crowd if needed, I'll have the name Adam on it
I'll be minus the shotgun