Without seeing exactly what you are referring to (LinkedIn??) if there’s some sort of commuting contract it won’t be LWOP from Aus. Historically HR will eventually let you go on LWOP from Aus but they aren’t much help other than approving or denying your request so I seriously doubt they’d be offering commuting. (That’s not to imply it doesn’t exist through a contract agency)
It’s been discussed on here before, but if you want an aus position or want to come back to aus DONT go via those regeims as you will be employed direct to that entity and there WILL NOT be an option back to aus. You would need to resign and reapply.
That said, if you are simply looking for 320 time and don’t give a hoot where you live then from all reports they are great fun, just don’t expect to slot back to aus.