Great idea except even using Wakefield insurance it still leaves the organiser open to be sued as well.
I'm tossing up the ideas, possibly doing it under the ACT supra club banner and splitting the "profits" with the club. Or possibly doing it under the SAU NSW club banner. Since we are trying to make it more of an ACT organised type event (with NSW invited) I'd lean toward doing it jointly with the ACT Supra club.
Just remember there is the possibility of making a loss even if we get 30 cars. I'd impose a limit of 60 cars, but the closer to 60 the better. My session with the Ferrari club and 30 cars left me with so much track time, I kept having to find more fuel.
There are small but active clubs in the ACT for WRX's and EVO's that would contribute probably 5 each to the day.
ACT Skylines 5
ACT Supra 5
ACT WRX 5
ACT EVO 5
Leaves us well short. Double it if we invite NSW clubs and we are getting into safer territory.