Nice picture :)
The nice thing about going with a group is that it comes with a support vehicle and water/food/bag carrying. Doing it on my own would be about 10x more intense in terms of prep, I think. I've watched a few biking videos where they started getting close to the edge on water and had to ask random houses they finally found.
If you like an epic trek, there's always horseback: https://www.nbcnews.com/id/wbna20925119
Hah, I read his book, it is fantastic and worth a read -> https://www.amazon.com/Trail-Genghis-Khan-Journey-Through-eb...
It also makes my butt hurt just to think about.
There's footage / DVD from his trip also - up on youtube some is, IIRC :-)
Yeah, sore bum, ouchies. That can be bypassed if you don't mind walking, don't mind camels, and don't mind being thought a bit girly:
* https://www.sidetracked.com/fieldjournal/crossing-australia-...
* https://en.wikipedia.org/wiki/Robyn_Davidson
Our family doesn't mind a long jolly, one of my favourites (that someone else did) was into the more restricted bits of Papua: Cannibals & Crampons (2001)
* https://www.imdb.com/title/tt2142721/* https://www.youtube.com/watch?v=ShIfMP8rfg0