theres not even a release date for APB in Aus, let alone if it will every be released in Australia, and a set date in any other country.. This should be the least of anyones worry right now as the game its self isnt even finished. This is pretty much like asking if there will be an unmetered server for Battlefield 3.
Well the closed beta is coming soon, so I'm actually wondering if it's even possible for GameArena to mirror that file as I imagine it wouldn't be small.
File mirroring is easy, the hard part is getting people to download it, size reasons.
IMHO, if this file is as big as you say, they would probably put it in a 7-zip Archive with max settings turned on.