Beautiful part of the world. We stayed in Caloundra for a week on our visit in 2009. Quite a trip, and quite a Country. Very bad fires that year, we got chased off the coast (Airlie Beach) by typhoon Hamish, flooding in Townsville, etc. Spent about 6 weeks total in Oz and despite the things I mentioned, we loved it.
Post some photos of both your boat, and the cruising grounds.