I understand that Extravision is tha Australian Dealer for Ioptron.
www.ExtraVision.com.au
I cannot give you any advice regarding this brand, I'm sorry.
What sort of setup/type/aperture are you looking at? Would something like a Celestron 6SE be an option? Or do you have your mind set on a particular combination?
All the best with your journey. Best of health to you.