Scott,

As Ben indicated the Hobbyline model is the best starting point. There was an article in Railroad Model Craftsman, May 2011, pp83-86, “Detailing a Lehigh Valley Hopper Car” and also an article on the Lehigh Valley #50100-50149 Series 70 Ton Covered Hopper in Anthracite Railroads Historical Society the Lehigh Valley Railroad Modeler section.

Chuck Cover
Santa Fe, NM