Thanks Steve. Your book was a lot inspiration for it. But I did chicken out with the cartridge trap under the patch box. I love that! And it would super functional when the rifle is in the woods after fox squirrels as it was just last night and I was fumbling for a second shell after missing and had to duck as the squirrel tried to land on me and then it took off and I still didn't have that second shell out of the box and so and so forth.
If I could find a decently finished patch box, I might do it yet.