IM over the years has been their willingness to put bogus paint schemes on their models for special orders, while neglecting their own product line (e.g. AAR 10'6" 1940 box car) and exploiting the large number of actual prototypes for their models.
Sitting outside the museum in Spencer NC is a Southern box car. It is a PERFECT fit for one of IM's models. I took a couple dozen photos and sent them to IM. Result: AFAIK, they've never done it.