After seeing this ad about the shortened wagon, a reader named Or forwarded me the following links that show these shortened wagons aren’t as rare as we thought.  Thanks for finding these!

httpv://www.youtube.com/watch?v=ykAQ967gxmU&feature=relmfu

From this link comes this picture:

Here’s this one with a slightly different front end from this link:

Or, if you like red:

Here are a few more links, too:

https://lh6.googleusercontent.com/-cPd-DXN-roo/T8ura4LrSZI/AAAAAAAAAqI/4votwocxN5w/s400/1165413236.jpg
https://lh5.googleusercontent.com/-og9QbesAeMo/T8urkmL35LI/AAAAAAAAAqQ/NOx-nRG0Xes/s400/1175596299.jpg
https://lh4.googleusercontent.com/-yL5EOaxZ8ZY/T8urvLQ4slI/AAAAAAAAAqY/8ON9BYVKc8c/s400/1196241655.jpg