Welcome Billy, I'm no expert but I thought that the Maple Leaf trucks were all assembled here in Canada, but I guess I was wrong. I keep learning stuff all the time. I also thought the heaviest Maple Leafs were 3 ton trucks.
Put an ad in the swap meet, see what is available from fellow bolters. There are a few in Aussie land here, not sure what they have.
Glad to see you want to keep her close to original, my thoughts too.
Leo
Yes had some contact from Tara & Lee from Alberta (Stovebolters) who ID'd it as a 1937 .
Yes Holden (which became GMH -General Motors Holden) assembled Chevs, Buicks, Oldsmobile's and Chev & Bedford Utes, Trucks.
They were imported as basic Chassis and then Holden configured a cab to suit (from what I can gather).
I believe they , Holden, used the same cab on Bedfords and possibly others in that era.
Anyway, I am trying to collate what I can, so maybe some Bolters in Oz can help.
Thanks.