If my memory serves, the run was approx 110 km up north and into the laurentians. Combination passenger with 1 freight car. Multiple stops, call this a "milk-run" picking up / dropping off passengers and freight. The train was not long.... 4 or 5 passenger cars only.
I think a Hudson would have been too much power for the intent here maybe.
The only thing is that this train had to get up some pretty steep grades and it went in and out of valleys.
gg