Here is a recent report from Crooked River in Victoria.
Just informing you of a recent sighting I had this week on a 4wd trip.
My partner and I were driving on billy goats bluff track in vic high country.
We had three other cars behind us and we were ascending up into the track.
We spotted a black panther on the left hand side of the track. We travelled no more than a kilometre. The panther was jet black and unmistakeable, it was somewhere between 5-6 foot long and at least 3-4 foot high with a long tail.
It was sitting along side the track and we got as close as twenty metres before it swiftly ran off into the scrub.
Unfortunately I did not have my camera,
but the two of us did see it.
Hope this helps with your research.
Weather: 10-15c overcast day
Where: Billy goats bluff track, crooked river Vic High Country. (Near wonnangatta rd).
Coordinates: -37.40766, 147.08145"