Okay, well a few questions.
Firstly, do you have to fly into sydney, or could you start ur Australian journy somewhere else?
The reason I ask is perhaps a round-the-world ticket could fulfil your needs.
If you go huting there are some interesting opportunities out there.
Or, perhaps a ticket via the USA/Canada and stopping in some pacific islands.
Continental flys to Cairns Via GUM, and HNL
. So, there is an interesting, if not very long in total journy.
There are others, it really depends on whats more important.
Obviously the fastest way is thru SIN
More info please?