We're currently at about 8 internationals.
Smaller events will be planned around the major events closer to the date.
I think Curly is on UER. I will check & get back to you, but if you can get hold of her she is brilliant at saving you money on airfares - such as don't book your ticket to Australia - book it too Asia where the competition to Australia is better (a bit more work for you but you could save $500+)
One thing we do well is plan expos, so don't get stressed by the lack of updates on here - THIS IS GOING TO HAPPEN!
Oz $ is Currently around .70 US.
There'll be plenty of people driving between states to get lifts with (& domestic flights between Melbourne & Sydney are pretty cheap).
There's still time
Jump on board & head down under Downunder.