Not to disparage the Hengstler that came with it (below), as it was an actual Hengstler, but it lacked many of the details I wanted. I though about having one 3D printed, but since this will be my "swan-song" for this type of build I went with an alternative.
Back to the Blaster Factory for a replacement! Their kit (seen below) is crazy accurate and has all the bells and whistles I was looking for. The kit is pretty easy to put together, and they have a great video to help with assembly.
The only part I wanted to change was the numbers. When you order one, you choose one of 2 pre-printed selections (one seen below) that fit inside. BUT... I ended up cannibalizing the old one that came with it for the numbers to get the customized ones I wanted (pic 3). No surprise I used 10963, lol. I just glued the loose ones together and it fit perfectly. I lost the flat counter push button, so I ended up making one out of black ABS, which matches pretty darned good.
I like the fact that the previous builder used metal for the power cylinders and mount (not an easy task to accomplish with store bought materials). I found them a little too long, though, and the mounting plate was not too accurate. This is how I received them (they were mounted to the magazine before removal).
Again, the need for accuracy is gonna' cost me, but well worth it in my opinion. I looked around online and the best ones I found were again from the Blaster Factory. Fairly easy to build, and they even reproduced the Metalmite capacitors.
There are several styles of mounts available, but I went with the "A". Not sure why, but I just like the look.
I have built many set-ups like this using resin and 3D prints, but since these were all metal I figured I had better watch their tutorial. The only part I had a small issue with was mounting the ends of the cylinders to the little wing plates. They suggest to solder them, but I simply am at a loss on how to do that. I ended up using JB WELD "SteelStik" moldable epoxy in small amounts in the areas seen in red. This product is made for bonding metal, dries in less than 10 minutes and has bonded them fantastic.
After a few coats of flat paint, the capacitors were CA glued in, wires connected and resistors attached.