Pawel,
Brisbane is our northern east coast state capitol. The beach photo was taken another 1500km north of the city and there is still another 1000km north of that again. Its all pretty remote, some tropical but some desert even along the east coasts. All of the west coast in the attached map is desert but with beautiful remote beaches. Normally about 300km between small towns and fuel. Sometimes its lots more and extra fuel (and water) has to be carried.
Colin, some states are in lockdown and others are not. The trick is to skirt around those in lockdown, namely New South Wales and Victoria. Attached is a google map of our route for getting back to home. We are at about two thirds the way and its getting toward 4000km just for that part of the trip.
Sure is a “walkabout” wandering around almost aimlessly for months on end. But get to see some spectacular country and sunsets.