I'm going to add the front and rear railings somehow like the real engine had. I think those sold by American Models might work.
A "quick and dirty" way to add front and rear railings on the Flyonel Baldwins (i.e. those with applied handrails, as opposed to the Gilbert Baldwins with molded on handrails) is to shape them from the very thin wire found in a "twist tie" after the paper covering the wire has been removed (the long twist ties found with the trash bags one uses in garbage cans or to bag leaves seem to work best ) and then slip the ends under the low railings on the front and rear pilots, which will hold them in place .
The advantage is that you do not have to drill into the car body and the railings can be easily removed if you ever want to sell the locomotive and the buyer wants it in the condition in which it left the factory. It ain't perfect (or prototypical), but it meets the "3 foot rule" (i.e. it looks pretty good from 3 feet away), and the railings (which are "scale size" in diameter) can be bent back into shape easily after rough handling by busy little grandchildren.