T, #6: you need D.Eyre, A/c in Oz, 978-0864790231 and UK Official History, WW2, Civil Series, H.Duncan Hall/CC Wrigley, Studies of Overseas Supply, Ch.IX, the Eastern Hemisphere. You will find many assertions of deep evil by Brits trying to corner Oz markets…just as you will find endless Brit assertions that we wuz robbed by US. Few or less are true. Always a reason. In WWs1/2: Shipping: it was better for the Allies to put fit, strong Diggers into uniform, than to tussle U-Boats/commerce raiders, to move raw materials in/finished product out of Oz. Better to build in Canada, sitting on bauxite. CAC entered repair parts largely because the spares supply chain, Original Equipment Manufacturers – Users, was so slow (ASM Genet Major parts were for A6-1/34 Cadet II, low on UK priority, below Cheetah and Merlin parts -ASM was a Merlin repairer).