I had a look at the Brisbane wagons today. Contrary to appearances on the website, I thought lot 4 was in better nick substantively. 3 had quite a bit of rust in door frames and around the outer lip of the cabin floor; none in 4 that I could see.
Having said that, 4's interior was a bit ropey. Loose plastics in doors, the locking tabs did nothing, rear right door wouldn't open from the outside and the boot door was very hard to open.
These are the first ones I've looked at though, so I'm not sure what sort of quality to expect in terms of interior.