Grant,
Yes, I suspect the package from HGW will not be very expensive, being flat-packed PE and fabric seatbelts etc, but I ordered over $AUS200 worth (about 20 separate packets - detail sets for WNW and PE enhancements and fabric seatbelts as described). I really did not want to have to pay exorbitant prices for packaging and handling etc.
I also always choose the cheapest shipping method they have available. Some establishments offer "Express Courier Service" in 2-3 days, and "Courier Service" in 7-8 days, and "Worldwide Shipping" in a few weeks via normal Postal Service form the country in question. My modelling is glacially slow, so I don't mind waiting
I have purchased some goods from other European countries and had to pay their national debt apparently. These are just to enhance the models I already own, not the full sized box for Pete's sake!
As I said, shipping a wooden model ship kit from UK or Europe....YIKES! They generally INSIST on courier delivery, as a signature is required for such an expensive item (sometimes several hundred dollars).