Shipping to Australia would cost an extra $60 US for shipping, and then you may get hit with import fees when it gets there.
Discussion
Import fees are only for things US $1000+ in Australia, called the “eBay tax”.
What’s the weight of say 2 bars? Surely, USPS has a cheap international option?
PS, I’m originally from the US. But happy to help a fellow Nostrich figure out how they could take their business parabolic and support international customers 🤙