Copyright 2019 Nicholas Kalis
Bayardi Kit No. MST/38 and MST/54 and MST/43
To make your model railroad more interesting, don't be afraid to use products that are generally aimed at the military modeler community. Also don't be a slave to scale. Look at these packages. No scale is indicated. Can they work for a wide variety of scale - absolutely.
The photo above show Armand P. Bayardi Castings I Used on My Fn3 (1:20.3) Layout (MST-54, MST-38, MST-43, MST-51). I believe I used a few more of his castings that I omitted from the above photograph.
Oh, and have fun painting them.