Keep in mind showers at truck stops.
We did a trip about four years ago and took a trailer with camping gear in it.
On the way to Broken Hill via the back way:
Mad Max Country:
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The Daily Driver : '98 EL Falcon, 5 Speed , 3.45 lsd
The Week End Bruiser : FPV BF GT 40th Anniversary, 6 Speed Manual, 6/4 Brembo and lots of Herrod goodies
Project 1 : '75 XB GS 351 Ute, Toploader, 9" with 3.5's
Project 2 : '74 XB GS Big Block Coupe, Toploader, 9" with 4.11's
In Storage : '74 XB GS 351 Fairmont Sedan
XB Falcon Owners Group
Mike's Man Cave