For a 1.5kg package (which should be enough including packaging etc) will be:
Express courier international $71.50 (includes tracking, requires signature)
Express Post international $56.50 (includes tracking, requires signature)
Air mail $39.30 (no tracking)
Sea mail $26.80 (no tacking)
These figures from auspost.com.au
Sorry, have no idea. I'm guessing it won't due to the rev limit being different?