Hi Hutchy
Did the cannning a couple of years back ,travelled north to south ,took 21 days. This was a bit quick as we did miss a couple of things. I towed a track shack camper with a 4.2 petrol Maverick. We encountered no problems at all not even a flat. My bigest problem was carrying enough fuel as it is about a 1000 k`s between fuel stops. I ended up putting in a 150 lt main tank plus two 70 lt aux tanks.
I also carried a 60 lt drum allup 350 lts. Refueled at the community which is about halve way took on around 250 lts at a cost $780 .Finished the second halve with about 40 lt to spare. All fuel was carried on the car plus 40lts of drinking water. I tried to keep the weight of thhe camper under 750 kg. Carried 60lts water on the trailer. Ran tyre pressures at 16 psi in fronts 20 in rears and 16 in the trailer. Did not get snached over any sandhills but did have to back up a number of times. Topped up water at every opportunity and could have gotten away with 60lts with no worries. As it`s a fair drive to get there we did the Bungles as well. The chopper flight over the Bungles was worth the trip. Missus wont fly in a chopper again as it was only a 3 seater plus pilot and no doors. Our trip started in Alice then up the Tanami to the Bungles then to Wolfcreek crater a must see, then on down the Canning and across the Gunbarrel. All fo these tracks were corrogated and needed care so as not to damage the vechicles. Met some great people every where we went and had a great time. Let me know if you want any info only to glad to help