I would suggest leaving it at home unless you want it for EMI reduction in close to urban areas.
Other than that it is an unwieldy, heavy thing that I rarely used and several people I know with 6000s also never use.
The only person in Vic that I know uses the 14" is my mother's friend who is detecting quite close to an NBN tower.
On the other hand, if somebody would make an approx 11 X 7 DD coil for the 6000 that would be a different story...
Good luck with your trip. Are you heading over soon? Will start getting hottish late October.
Cheers, NE.