I was fortunate enough to pick up an additional VE.A PCB as part of the MD GB, and I've picked up some spare plates since then.
The release of the DXF file for the ALPS plate was the final piece of the puzzle.
After much time spent learning the ropes in Autodesk Fusion 360 I came up with this:
It's held together using heat set inserts and M2 screws. A soldering iron is used to melt the inserts into pre-made holes.
McMaster-Carr parts #s:
94180A307 Heat-Set Inserts for Plastics M2 x 0.4 mm Thread Size, 2.9 mm
91294A009 Black-Oxide Alloy Steel Hex Drive Flat Head Screw M2 x 0.4 mm Thread, 12 mm Long
I printed the parts out on my Ultimaker 2+. The top is made of Protopasta CF reinforced PLA (3 perimeters, 7 top/bottom layers, 50% infill, .15mm layers, .35mm nozzle). The bottom is made of clear Colorfabb XT (3 perimeters, solid, .4mm layers, .8mm nozzle, 110% material flow, ZERO FAN). Getting the bottom as clear as possible is a little tricky.