Has anyone ever made Trinity covered hoppers in N scale?

I constantly see covered hoppers by various manufacturers modeling ACF cars, but has anyone ever made Trinity airslide covered hoppers in N scale. I have never seen them, but I would love to get my hands on a few as the area I model (Saginaw, Texas) includes the plant where these cars are built.

Ron

I do not know if you have already done this. A good way to get an idea is to go to Walthers website and search for Airslide and select N scale and Freight Cars. If it is not in there, chances are not very good.