HOn3 cars for TrainNut

[nachoman]

Wayne, even though those cars look like they have a delicate door sliders (more delicate than Athearn BB), I still feel more comfortable with that arrangement than those 4 little nubs that serve as the bottom track of the HOn3 car. Those little nubs are nearly impossible to install without magnification, and even with magnification were quite a pain (especially when they squeezed out of the tweezers and I had to search for the tiny little part on my table )