Hi Ned
If you are thinking of somewhere central then Weston Park, just north of RAF Cosford, would be worth considering. A long history of large events such as V Festival, Large Model Aircraft Show and even the G8 summit in 1998. I think they used to do hovercraft racing there so you might be able to expand the hovering community at the same time!
Good motorway access, almost to the door (aids navigation!) and not bad for accommodation locally.
Halfpenny Green (might still be called Wolverhampton International or something!) EGWC and Tatenhill EGBM not far away for fuel.
Website
HERE
Cheers
TeeS