A New Zealander, David Auld produced limited runs of live steam locomotives, from 1965/66, as well as a steam launch, stationary steam engines, and mobile steam road vehicles, in Mamod vein. For images, see Scorpion2nz Collections
For more information, and illustrations, of Australian 0 gauge models, including live steam, please see the book Spring, Spark & Steam by Bruce Macdonald.
For Australian live steam models on the web, including 0 gauge railway models, see Tony Muir's truly wonderful Australian Toy Steam site.
Colin Duthie's YouTube video features live steam by David Auld and Cranko, as well as Bing and Bowman.