In 1975, Commonwealth Engineering built an additional 10 twinette sleeping cars for use on the Brisbane Limited and Gold Coast Motorail. These were modelled on the twinette sleepers used on the Indian Pacific.
A fictional branch line from Hornsby to the Galston Gorge. Based on the Hornsby Model Engineers live steam layout, it's meant to portray the beauty of the Kur-ing-gai Chase National Park. However, it can be used to represent any scenic railway line in NSW.