I would be interested in decals.  However, only one or two sets, as I think the car other than the ends is a mostly scratch-building proposition.  I believe these, along with one contemporary 50ft NPMX series,  had flat a panel overhanging eave roof, but haven't located an overhead shot to confirm.  There were only 25 of these 40 footers.   

Chris Frissell
Polson, MT