The lateral truing gage is shown in this picture.
I added a solid wood edge band to the base plate, curly maple on this one, and used a single knob in a slot for width adjustment. A pin on the underside of each upright engages the slot to keep the uprights in alignment as they are slid side to side. I also routed a pocket for the "jaws" to better attach and locate them.
The radial truing gage is shown in this picture.
Hopefully Chris gets some use out of this stand. I will building a couple more in the near future.