Why would you want to commute to Australia?
Seriously, commuting from Dubai to anywhere on the network is difficult. I won't say impossible because definitions of an acceptable commute vary from person to person.
However, the vast majority of pilots don't commute which indicates (to me at least) how difficult it really is.
I know you want to make it work, will see it from a different angle, maybe if we sacrifice this.....etc etc, but the simple answer is you won't even be close to what most people consider an acceptable arrangement.
Three words "Don't do it".