Re bsrlee and John Armatys comments above.
The standard Australian Army rifle for most of World War 1, World War II and the Korean War was the Rifle Short Magazine Lee Enfield (SMLE) No 1 Mark III* introduced in early 1916.
Prior to that time the standard rifle was the SMLE No 1 Mark III (i.e. without the star * ) first produced in Australia in 1912.
I know the SMLE No 1 Mk III* well. I carried it as a Regular Army Officer Cadet in 1959 and used it for four years prior to that in my High School cadet unit.
I recommend google the Lithgow Small Factory Museum for information on the manufacture of the SMLE No 1 Mk III* in Australia. There is also information on all the Small Arms and other weapons produced at the Lithgow factory.
Lithgow was and still is the main producer of small arms weapons for the Australian Defence Force.
As regards the colour of British and Australian jungle green clothing. Quite a lot of Australian jungle greens in World War II was produced in India. As was the British and Indian Armies' jungle greens used in India and Burma. Cheaper labour and greater access to cotton was the reason.
In return for clothing and other cotton products e.g. bandoliers Australia sent Vickers MMGs and other locally manufactured weapons to India. Vickers guns were first produced at Lithgow in 1929.
I am not aware of any significant quantity of US clothing used by the Australian Army – other than gaiters – in World War II. At the start of the Pacific War the Australians used the British Anklets web as they had done in North Africa, Greece, Crete and Syria. In the jungle conditions on the Kokoda Track anklets were not suitable. Leather Light Horse leggings were experimented with but were found unsuitable. US Army gaiters were used until Australian designed "mud gaiters" were introduced in late 1944.
As for painting miniatures. A dark green heavily weathered with black/brown is suitable. The original pristine green is soon weathered from rain, mud, rifle oil, sweat, solid fuel tablets (Hexamine) and mosquito and mite repellent.
Tracker39