Prepping for a trip to the outback

[Sabantien]

Hi guys,

So I'm interviewing tomorrow for a job in Winton, Queensland. Out past Longreach.

Assuming I get the job, i'll be driving out there, and living there for six months.

A few months ago I did a drive to Queanbeyan and back, (1,200km each way), but didn't really do any prep for the journey. It was a last minute decision to go, but I was also conscious that there was a lot of traffic along the way and never very far from a town.

I believe it's proper highway all the way out there, but can still be quite remote.
What sort of prep should I be looking at doing?

I have a 2009 G6E, serviced it January, but having it looked at prior to leaving might not be a bad idea in any case.

I'm thinking a full spare tyre rather than (or in addition to) the space saver.

I'd like to have a 4wd, because the road to where I would be working is unsealed and 4wd only after rain (but carpooling with someone with a 4wd is probably an option), and I'd like to spend time exploring the region, camping, etc. But it's not a permanent gig, and I feel like i'd be downgrading vehicles, and if I was to return and sell the 4wd for another car, it would be yet another downgrade.

While I should probably wait until I get the job before worrying about the logistics of the trip, I can't help but think about it!