Bringing a rifle into Australia on a vacation.?

I'm somewhat planning a trip to Australia next year, and have a question about non residents bringing firearms into the country. I've read the application for international visitor firearms permit, which I know is a must have if I am going to bring a rifle. They ask a lot of specific questions about what I'll be doing with it and why.

It seems the greatly emphasize the three following reasons to bring a firearm into the country. Shooting a specific range with a clubs invite. Shooting on private property with the owners permission. And shooting for a specific hunting or safari reason.

I don't fall under any of these three. I plan on doing some camping, off road trails, backpacking etc... I would like to bring my rifle for protection against wild animals. I'm hoping I won't have to use it.

Does anyone know whether this would be enough to apply for the permit and have it approved?

Btw, the gun in question is a Marlin 336 in .30/30. I know handguns and semi-autos are even more heavily restricted there, I felt this was the most sensible choice.

Also... please no snarky comments about Australia's gun laws. I'd like real answers, not just a bunch of people spouting off hate for another country's laws. We, all know they are much stricter than the US's, and it does no one any good to flame on them.