Hi Ichi.
Welcome to the forums mate.
Once you get that burning desire to fly, there's normally no antidode regardless of how ever long it takes you.
I can't help you with regard to the guy at Navair, but as you've posted on this this site, I wonder whether you either have deep pockets for GA, or are also considering learning to fly under RAA, as opposed to a general aviation license.
I personally gave up flying at Bankstown as the costs were prohibitive for me.
Have you considered taking a drive to The Oaks past Camden?
You might be pleasantly surprised at what you find. Dave's Flying Training, or Sydney Ultralight Club would be far easier on the pocket if you care to Google them and are prepared to drive a little further as they are a super friendly bunch.
Kind regards Planey.