John,
You don't need to travel to Qld to have a shot at a state title. You only need to come to just north of Sydney.
Although we don't call ours a state title it is widely regarded as the best against the best with all comers welcome.
For Pre 78 we have the CRC ( Crawford River Cup ) which is a all capacity grass track meet run on the Saturday. Two races with the best pointscore taking home the perpetual Ray Ryan Memorial Trophy for one year.
For Pre 90 we have the Evo Challenge run on a full blown motocross track. This race is two 15 minute motos for Evo 125,250,500 Pre 85 125,250,500 Pre 90 125,250,500
With both these meets you get to ride not only the Trophy races but also the normal club round capacity races ranging from Pre 65 to Pre 90 the next day.
Lots of riding for a fraction of the cost of a Nats meet.