...Dodge Lang. I was a Ford man but seeing that dodge I had to get a new Cummins diesel powered Dodge Ram.

Seriously should be much cooler than a dark green car in the desert too. Out of curiousity did you have the rad inspected or redone in anticipation of the heat or have you been running in Oz in similar conditions as a test?
Have fun, send pics of this really neat adventure.
Cheers
Sean