Isn't That Cool!
Fascinating, Fred! Let's have the goods - How does it scale out? What did you have to do to convert it? Looks like the "face" just popped off, buffers were removed, and couplers installed. From what I see, it looks like you were able to retain the spoked wheels, which look really neat, if I may say so. Is this the size of wagon that would go behind a Porter, or a larger loco?
Finally, where would I find some of these?