The new mail forwarding company presented by Aus Post, not sure about their service. Their standard shipping cost seems slightly higher than shipito. The 25% discount makes it reasonable. Their warehouse is located in oregon.
Quoted from official website:
International shipping rates are A$24.95 per parcel, plus A$5.95 per 500g. The minimum chargeable weight is 500g, with 500g increments thereafter.
Repacking service is available for 5 dollar, in order to minimize the volume. However, consolidation option seems not available in the system.
Damn, they make Amazon's own international freight charges seem positively cheap.