As a quick (and hopefully vaguely related
) side note, I recently walked from Burnett Creek to the summit of Minnage's Mountain via the narrow strip of Mt Barney NP land that stretches up the mountain from the creek. Bushpeople's and other online track notes list it as an entry to Junction Peak and Mt Ballow, but I didn't get that far (I saw where the track continued but by that stage was running low on water, daylight and puff).
It's a very nice day walk (for me: 6 and a half hours to summit and return, no water en route) and similar to Mt Maroon in terrain and vegetation; fully open and steep in parts, but without the outstanding views. Nor does it have a track per se, though there are a lot of footpads leading in all kinds of directions which were a bit confusing on descent. As with the OP, I found working out exactly what is National Park and what is private land was a bit tricky, particularly as the NP land is neither fenced nor signposted. I hope I got it right, because I also dislike trespassing. However, these things considered it's a very nice mountain day walk and nav exercise (which is why I did it) if you're in the area and feel like a change, particularly if you don't have access to a 4WD.
I just thought I'd mention it because I couldn't find any recent track reports, and it's a decent option provided your nav skills are up to scratch (particularly in descent).
P.S. Watch out for ticks. I collected two to take home as souvenirs.