I'm sure that it would sell very well especailly with Aussie collectors and at the shop in the Australian War Memorial in Canberra, where the original diorama is located.
You can have a close up look at the diorama ( Flash or HTML) here
http://dev.links.com.au/diorama/about.htm
Dioramas or "picture models", as they were first called, have been a part of the Memorial’s displays since its inception. They were first suggested by official war artist Will Dyson and official war historian Charles Bean to give a more vivid impression of war than conveyed through photographs and paintings. The dioramas were designed to create an emotional account of the experiences of Australians who fought in the First World War. They provide a broad picture of the places where major battles were fought and establish the context for other items on display.
The Lone Pine Diorama depicts the first diversionary attacks in the advance to Chunuck Bair at dusk on 6 August 1915. The diorama shows men of the 1st Australian Infantry Brigade attacking Turkish trenches. The Australians are wearing white patches to prevent them being fired on by their own men.
Work began on Lone Pine in 1924 and it was first displayed at the Memorial in the Palestine gallery. In 1982 the diorama was relocated to the new Gallipoli gallery, which officially opened in 1984.
Louis McCubbin painted the original figures, background, and modelling. The background was repainted by George Browning, first in 1953–54 and again in 1982. Browning was assisted on the second occasion by his wife Joan.
Well worth a visit to diorama if you are in Canberra or the real thing in Turkey (Ive been to both !)
John