Nice, the riverina area is not to bad, grew up in Wagga Wagga (havent been back for a while now though). Other nice areas would be across to Orange and Bathurst (Cherry picking at its finest and also lots of Vineyards). You are correct though, definitely a big place with lots and lots to see. How long are you intending to take off to do this trip, or are you going to do it in smaller chunks on and off? Anyway good idea and hope you can go through with it all.