Don't worry: we ship many packages every single week to Australia, and have done so for almost a decade.
The trouble with Ebay is that you are often getting old used items, which you don't know whether they have been looked after or even fully working. Very often, the brand new products we sell at regular pricing in our store appear some months later on Ebay at inflated prices in a second hand state.
This is one of the many reasons we started AmigaKit.com: to ensure Amiga users had a safe, reliable shopping experience and they had after-sales support for the products they buy from us.