If you are happy to pay $425k for a cap then I don't think the 10% GST will be a barrier to you purchasing it.
I think this guy should be applauded, he thought there might be tax payable, investigated, surrendered the goods, paid the tax and received custody of the hat. If he thinks there has been an error at law, I am sure he will be seeking advice from an expert.
My concern is leaving a 1/2 million dollar hat with customs when they can't even physically secure their own mainframe computers
[This message has been edited by mikalee (edited 09-12-2003).]