@richabr posted:It would have been a horrible decision for Gilbert to produce this set. A too limited appeal and lack of dual service for play value would have been a sales disaster. An RS design was likely too narrow for the drive used at the time. More likely candidates might have been a Trainmaster, RDC, Alco DL600 or a low nosed GE or GM unit. All were capable of using the diesel drive of the time and could have been made in various roadnames.
I don't know about that. Lots of one-off models have been made multiple times and been very successful, consider the PRR S2 Turbine #6200 made by everyone under the sun in every scale imaginable! There was exactly one prototype, not exactly a super successful design!