Did BNE -CNS and up into Cape York back in the 1990s in an old Mitsubishi. Most of what has been written here is good advice, here's some from me. If you come to a STOP sign in the middle of nowhere, with no other cars in sight for miles in any direction, you stop and count like you did on your driving test before moving off. Why ? Because that's the intersection the coppers will be watching. Expensive lesson
Same for speeding, they trap in the middle of the Nullabor Plain so any isolated road is fair game to make up the monthly ticket quota. Don't drive at night, hit two roos myself driving at dusk. I'm sure you are sensible enough not to drink and drive.
Have "flight following" with someone back home. ie Leaving X at this time on this road, spending the night at Y. Check in when you get there.
Safe journey.