Here are a couple of links to some USA national brands. I don't know if they are available down under but I suspect carriage would be a deal killer for sure. Products this heavy are expensive to ship domestically, let alone overseas. I also don't know about import laws for grain/agricultural products. Anyway, these are good and I know there are regional mills as well. BTW, I find the cornbread made from Hodgon Mill to be superior to any mix I have tried.
Regards, Todd
Hodgon Mill
Bob's Red Mill
Regards, Todd
Hodgon Mill
Bob's Red Mill