Common Standard hopper car panel side rebuilds


I'm looking at modelling a GTW panel side rebuild hopper car.  CV and CN also had these.  Comparison of these cars against the car modelled by Tichy's HO kit reveals that the CN family rebuilds were of a car smaller than the USRA hopper car rebuild modelled by the Tichy kit. Grafting Tichy panel sides to a Bowser PRR GLa will not work--the Tichy side panels are too high.  Did other US roads rebuild GLa clone or Common Standard hopper cars using panel sides?

With thanks in advance

Steve Lucas

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