Martin Searnacke, who designed LightFactory, operates out of New Zealand. He advertises a lot of ENTTEC products to work with his software. Being a bit more local to you, he might have some insight into preferred vendors.
I also support buying from LightFactory . But you might also buy directly at webshop from Enttec! Presuemely the most easy way to do it in Australia, unless you live near Melbourne.
(I have had good contact with both firms and their products for a decade, and have been using LF with both Playback wing and Programming wing for almost same period)