I think I lost a message along the line. You mentioned the Flinders Ranges. Yes I have been through there. It is a very lovely place. You just dont go walkabout in the summer there.
To enjoy the Flinders you have to spend several weeks just moving from place to place and camping out. There are several places about, usually the pub, post office and petrol station, actually all one building. The worst thing with anything to do with the Australian outback is getting lost. People manage to do that easily. I have not worked out how they do it yet.
I was travelling through the Flinders once with a friend. He had no idea where we were most of the time. Luckily I had a geological map and did all the navigation based on rock types and formations. Easy stuff is you know how, and know your geology.
One day I am considering riding through the area on horse back. A lot quieter and should be more fun. I just have to find someone as crazy as me.