Thanks for your suggestions, much appreciated.
My Jeep was the only one I saw on the whole trip, although it was "raining" Jeep comments often. LOL
It took all challenges with ease. 95ltrs diesel for 554kms (17l/100), although it would have been much better if I wasn't having so much fun conquering Big Red 4 times on standard Toyo Open Country AT2 245/65R17 tyres
I've replaced them now for 265/65R17's (no clearance problems)
Cheers
MB