Buying a car

Hi

I'm flying in to perth on the 28of may. I'm looking to buy a car or van anything really. Anyone selling anything or know of anyone selling anything?? How easy are they to get

I'm sure there'll be something posted up at the accomm your staying if it's a backpackers. Otherwise ebay.com.au just make sure its in perth.. or www.carsales.com.au