NO! The resistor would be the hottest thing in the locomotive!
1A of power would be over the top for the smoke output of the R2LC, that will push you well over the operating temperature in only a few minutes. Why not use the constant voltage board that's currently in the locomotive and just use a relay on the smoke output to switch track power to the constant voltage board. No overload, and you already have the power source to drive the smoke units.