Yeah, apparently Aus Post have been kicking up a stink because they are fielding the extra postage costs from America/Australia's international parcels.
So If US Post costs $30 to cover US to Delivery but it costs AUS post an extra $30 from the airport to the address, Aus Post have to pay the difference. We might see a change of operations soon for large international parcels.
As for the hinge, I will leave it, unless its a straight swap. It doesn't bother me which way it opens.