I see you posted your question November 2015 ! I’m curious if you’ve traveled yet to Perth and if you went by train ? May I ask what the costs were ?

I would have to fly as it takes so long!

I would fly as it is such a long way. I personally only like flying Qantas as they seem to go above and beyond when I have travelled with my children

you would enjoy it because it would be better than flying. lol

I travelled from Perth to Melbourne via bus. It was very long, we didn’t spend much time off the bus, and it did get a bit boring. I would guess the train would be more comfortable

We drove by campervan from Sydney to Perth. It was very nice. But long!
If you have issues with flying, I would surely consider the train.