Non-pilot here who used to fly with Billy Vincent* (RIP) quite a bit in the 70s. Shame he's no longer around to offer his thoughts. There's a memorial thread on the Pacific G.A. forum for anyone interested.
There are no salt lakes in Tas that I know of (rain!) however in the book "The World of Olegas Truchanas", which contains many beautiful photographs of the Tasmanian bush taken in the 1960s there's a photo of Lake Pedder before it was dammed (damned?) and flooded by The Hydro, with light aircraft parked on the white sand beach of the lake. Which may be of interest to a vanishingly small number of people.