The first day we drove about 640 km from Port Augusta to Robinvale, just past Mildura. So that day we spent time in 3 different states. We started in SA, we crossed over into VIC just east of Renmark, then we passed into NSW about 100km later, just east of Mildura. We stopped for the night at an overnight rest stop about 100km past Mildura. This was a free camping spot. We arrived about 6pm, and had the last frozen meal for dinner that night. Because of daylight savings, the kids had a bit of a play in the trees and a ride of their bike before having to go to bed.
The next day, we worked out we had 700 km to drive to Canberra.