I was just doing a little surfing and came upon an Australian company
who has a selection of Australian ship model plans including some
Murray paddlers.

The site is "R2 Model Marine" who proclaim themselves "Australia's
Leading Model Boat Specialist"....as well they may be!!!

Their plans can be found at:
http://www.r2modelmarine.com/5121.html

and listed are PS "Adelaide, Arbuthnot, Etona, Oscar W and Pevensey"
all in a whopping 1:24 scale.

PJ