It's already been stated to some degree.
Vehicle range, KNOW IT!
The Sirloin with its 40lt tank reminds me of a Suzuki that I've done some "outback" travelling in. This particular little beasty had a 32lt go juice reservoir and needed at least a little planning. We even had a few 'character building' moments that required A/C off and best range power settings to reach the next stop!
As for tools etc, 100mph/gaffer tape can be one of the most versatile tools known to man. The stuff can mend coolant hose splits, patch exhausts (which will degrade mileage), hold the beast together after wildlife encounters, restrain backpackers etc.
Drive and sight-see/increase job opportunities or fly, the choice is yours. Don't blinkered into thinking KU is the only option. Who knows, DBY or BRM might be worth the few extra miles.
Either way, have fun!