Check out the following website. It should answer your questions.

Stuart Highway

If I were you, the Oodnadatta track would be far more interesting, especially if you are riding a GSA.

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Just Ride!
www.rocktravels.blogspot.com

I have just completed the Oodnadatta & Strzelecki tracks last month in a 4WD and in some places the dirt road is 4 lanes wide. Minor corrugations in some spots but nothing serious. Excellent riding for a GSA.
Here is another site to check out Welcome to the William Creek Hotel
Stay away from the Stuart Highway as it is frequented by road trains (18 wheelers with up to 3 trailers) fun to pass, unless they are carrying a 150 shitting, pissing cattle, even more of a challenge if it is raining. Seriously there is heaps to see on the tracks, Lake Eyre, the old Ghan Railway line and disused stations, Talc Alf at Lyndhurst (eccentric old bloke thats carves figures out of talc rocks and has an opinion on how to solve all the worlds problems), Marree Hotel (great food & accomodation) William Creek Hotel (a classic outback pub, scenic flights avail over the "Marree Man"), Coward Springs (thermal pool & shady camping) and the Pink Roadhouse at Oodnadatta Pink Roadhouse - Oodnadatta Track (South Australia). Plenty of fuel avail at most towns, well within range of bikes.
There was even underground camping at Coober Pedy (Riba's underground camping & caravan park), don't knock it 'til you try it. Constant temp 24 hours a day and pitch black at night, great for the best sleep ever.
Only common animals that you will encounter on the highway or tracks are Roo's and Emu's, both were standing behind the door when road sense was being handed out.
I can email some recent pics of terrain and roads if you would like, let me know if you want 'em.

Be sure to contact the Brisbane Community when you get closer, as like John said we are always keen to meet travellers.

Take your time, stay off the normal tourist routes and you will see the real Australia

I spent some time in Idaho last year riding my CBR1100XX around your fantastic roads, had a ball. Hope you have as much fun in my country as I had in yours!

Glen

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Feb 2014, currently travelling the America's on a Tiger 800XC

Live every day like it's your last, one day you'll get it right!!!

Ben,

Have a look here, it is one of the better places to seek and find answers about travel in Oz, the forum will give lots of results. There are also other places on exploroz that lets you know about places and road conditions.

4WDing, Camping & Caravanning around Australia @ ExplorOz

Let me know if I can assist with other info. Before you are in Newcastle drop me a line.

Chris

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Chris