G'day Chris,
I have a 1940 Chev truck that was built by Holdens and was made with the colour plate of khaki. The cabin was made in Australia by Holdens before they were taken over by GMH. My truck is in the shed waiting restoration - its place in the queue was taken over by a Series 3 ex-army Fitted For Radio Land Rover.
I am not sure how original my truck's engine is I will take some photographs of the engine in the morning when the light is better.
Have you come across the excellent based USA site Stovebolt.com? It is a site especially for the restoration of old Chevrolet trucks. It has a gallery, Technical Tips section and a forum.
http://www.stovebolt.com.
What are the wheel base dimensions of your truck by the way and the overall length and width of the tray? Was the 1.5 ton rating an Army rating or a civilian one? What is your truck's weight for registration or is it a club rego? Do you have a truck license to drive the vehicle? In Queensland it requires a Medium Rigid licence.
It is great to see the photographs of your truck, keep up the good work.
Kind Regards
Lionel