There are a few old hulks that have seen better days in Charters Towers..... Also an old 402 in Roma which could do with a paint job, a couple of engines, an interior and tail if I recall correctly.
There is (or was a few years ago) an old Cherokee 6 sitting in someones yard in Kununurra.
Not long ago I also saw a house out in the woop woops which was made from what appeared to be the front 2 thirds of a DC3. If anyone has a spare set of wings and the back third.........
Edit: I just remembered.... heard a whisper that there is at lease one 207 in KU and maybe even a 210 which haven't flown for a couple of years.