Steve,
That's an excellent price, and like the rapidly balding Newts says, I would be there
Could probably count most of the usual track regulars - excellent idea if you want my opinion, expecially for displaying cars as it's all hard standing, and the facilities are VERY good.
Really hope this goes ahead, and I reckon on it being very well supported - also because the track location is good, and the track itself is very open with reasonable spectator points, it makes an easy transition for those who want to watch some track action and then have a wander round the group stands.
Only thing I would say re: the track action is make sure you get the slightly finer but very important details so there is no confusion like previous times re: DB levels, passenger ages etc etc