Bill,
Try Mark Van Der Togt at
mtsheet@tpg.com.au The vice president of the GT owners club of Queensland might have some leads for you. If they know of any good ones in Brisbane (capital of Queensland), I can take all the digital photos that your email address can handle.
I'll cheerfully steer clear of any paperwork required, but I can give you a hand with transport to the shipping docks if you buy from Queensland - either driving or trailering.
Let me know if I can help.
It's an over-simplification, but some regional Queensland cars are regarded the same way that Arizona / Texas cars are regarded over there -- high average temps, very little rain, never snow etc. Falcon GT coupes do have a couple of body sections that are more prone to rust than their sedan counterparts, but it's easy to see if they've been repaired or replaced.