Ok. One of my regrets is that, in the late 90's, the NWP had an SD50 on it. Only for a day or two. But, I never got a picture of it and wasn't smart enough to write down the number on the cab or anything else. The only thing I do remember is that it was blue and was either listed as a Conrail unit or a Helm leasing. I was hoping that someone else was smarter and might be able to point me in the right direction. Modeling an SD50 for an NWP layout just sounds like fun.