@cyanight:
I really do like this idea and the ability to direct production should prove interesting. The only change I would like to make to my own version is to keep Canada and ANZAC separate nations but having a shared bank. Its a preference I would like to see Canadian roundels in the game with Canadian pieces as well. It shouldn’t change much because ANZAC and Canada are on different sides of the board. You could get the roundels and a UK expansion set for Canada if you chose to this instead of replacing Canada with ANZAC pieces and roundels.
Canadian roundels can be obtained from HBG:
http://www.historicalboardgaming.com/Custom-Roundels–Canada_p_1378.html
For Canadian units, I use the butternut-grey British-pattern ANZAC units from Pacific 1940 1st edition, augmented by a few ANZAC anti-aircraft artillery units from the 2nd edition (since this unit type was lacking in the 1st ed). Under this arrangement, the butternut grey colour = the Commonwealth Dominions (except Eire, which was neutral). The Canadian units can be extended to cover Newfoundland. South Africa can be represented either by the Canadian or 2nd-ed ANZAC units, depending on one’s preference.