Drumroll please… it fits.
One thing that is odd about this build, is that I actually am building the tank around the conveyor belt I got for the track. I got a piece from a rubber store that was 6″ wide, and about 20 feet long. I cut it in half, and each belt was 129″ long. From this, I determined the scale of the tank.
So, after making all this other stuff, I needed to test the belt length to make sure I was still on track. With the frame 5″ off the floor. Looking basically perfect:
Then, a quick test of the overall size of the bogies. The bogies are not done, there will still be a roller wheel on top, and they will be bolted to the frame, but, this is a decent test of their size: