I've uploaded two files to the library, they should become available soon.
The first is a set of 20 wooden and steel Ontario Northland boxcar that would be appropriate from the 50s to the 80s, and some of the steek cars are still on the railway in work service.
The second is a set of six Ontario Northland vans, these were is service from the late 40s until into the 80s.
Paul :-)