That ride is bucket listed!
I am still working on connecting tracks on TAUT from Adelaide to Melbourne /High country.
There is a gap between the Limestone Coast and Portland that I need time to ride. Then Miss Jane and friends will ride from Daylesford across to the high country. After that there are trails that go way up north of Brisbane, most of them yours I suspect!
In my retirement I plan to ride from Adelaide up to Cairns using TAUT tracks.