Steve, my son;
The USTrains wood reefers with the supposed wood frames and truss rods, and arch bar trucks, look kind of funny behind even a Geep 9/7....let alone a Dasturdly 9.......remember that that kind of equipment was outlawed years ago for any interchange service.......and you would be hard pressed to find it except on a Colorado museum pike today. They are rather Narrow Gauge looking in my book.
Now if you remove the truss rods, and equip them with more modern trucks, you might get some to believe that they are very short reefers in a late 50’s scene…
Ultimately, if you like it …run it and have fun. !!!