not the answer. Been there done that.
The average show 20 to 30 thousand fliers go out. Posters in shops. Plus newspapers. maybe radio if i can blag it for free.

And we get if we're lucky 1000 people.
Fact is we're flogging a dead horse.
Even tried the fair ground posters on the road only to be threatened to be sued by the council. Can't win. :-)