Just looking at the dragons on your list I would say that it is most unlikely there would be too many people in Australia regularly breeding any of these species. The couple of people that do usually hold onto their youngsters to guarantee continuity of the species in their own collections because most of these species listed are so hard to get and are really only kept by serious enthusiasts. I would be very surprised if there was anything like 20 Canegrass dragons officially on the books in the whole of Australia. If I can be blunt none of these dragon species on your list are actually firmly established in the hobby.
If I was you I would be working to guarantee continuity of species you can already keep that are rapidly disappearing. Species such as Ctenophorus cristatus, pictus, fionni, vadnappa, decressii that many regard as established will soon be exceptionally difficult to acquire because the one person in Australia who consistently breeds these every year is moving out of the hobby and pretty much discontinuing his activities with breeding and raising reptiles.
What about trying to get C. isolepis and fordi going, now there's a challenge for you folks in Victoria and these species are already on you keepers list.