Hi m.punja. The reason you can´t keeping legal is you living in Australia.
We (herpers outside of Australia), will keeping some specials of your country, but are not able to..
Benjamin, are you sure that's a leucistic? It may be the lighting, but it looks like a Suphan to me. There are two different lines of leucistic N.kaouthia here in the U.S., the one that is available is
The other is a single specimen that the owner is currently breeding.
I see that you keep Aspidelaps. Any luck in breeding those?