Sorry, I'm getting annoying now I know!
We've got a 40ft shipping container and air freight too. We could ship our car, but we would have to pay AUD10,000+ in duty! So it seems sensible to sell it, but I'm not sure how car prices in Australia compare to the UK. Could we get away without a car? We are staying in Coogee originally and might stick to that area.
Also, what did you do with all your electrical stuff? Did you ship them and then replace the plugs? It seems a bit like financial suicide to sell most of our things and buy everything new when we get there!