Got a reply to my email, now bearing in mind the following quotes from the site : "I bring to you the Oz Kilt, the Aussie utility Kilt" and "We are currently out of stock but are busy making more", his reply was:

"Hi Robin,
At the moment we are getting them made OS but are starting a local production
crew within a few months.
If we make locally, the prices will go up a bit so we'll probably give people the option
and change the styles a bit with the price.
These are very simular to the American kilt."

...So much for being an Aussie Kilt!