Where are you in Australia? A class you might consider before booking such a trip is the GUE Fundamentals class, which you can get in Sidney or in Melbourne. That will give you some coaching in the use of double tanks, and in the trim, buoyancy and propulsion techniques which are common to all cave classes.
Why do you want to do all your cave training in Florida? Some of this could be done at home, with fewer logistical issues and almost certainly at lower cost.
Why do you want to do all your cave training in Florida? Some of this could be done at home, with fewer logistical issues and almost certainly at lower cost.