Wayne,
That is a cool project! I love the front end view of the 1939-40 trucks.
It is odd that the Holden cabs look basically the same, but are different in so many aspects. The ventilation systems are totally different than North American models. Does it have a cowl vent at the top near the windshield as well, or only the ones on the side? Also, is the mechanism that opens the windshield original, as it looks like nothing I have ever seen. The inside door panels are also quite different. I am not sure about it being ex-military, but did notice that it has a military like oil can holder on the firewall. The discovery phase is the most fun part of a restoration. Enjoy!
Paul
