Re the Canadian safety cab. Scott does not believe there would be sufficient reservations to justify the additional tooling cost.
Canadian hobby shops guaranteed sufficient reservations to get the Canadian made so lobbying there is one possibility in addition to individuals.
Another is Shapeways. Ask the guys who are making them available in HO if they will upscale them to O. I found a guy who is upscaling his HO GP39/40-2 dynamic brake sections for me.