Call mainfreight international. I use them all the time to ship from the USA to NZ, Germany to NZ, NZ to AUS

http://www.mainfreight.co.nz/aus/Australia-Home.aspx

They have depots / offices in most major cities in Aussie

I recommended them to Tony @ pinballshed and he was very happy with the service

They will pickup from any business address worldwide, or get the seller to drop it off at the nearest depot
It will need to be on a plastic palette (otherwise you maybe stung with a fumagation cost)

They handle everything will do AIR & SEA will cost around $1100 air  $600 sea

I have a pin going to AUS with them next week and my LOTR LE on its way now with them