Thanks for the compliment.
I have added a dimensional drawing for the PCB if you want to build your own. The position of the copper is not critical as long as it’s making contact with the center post.
There is also a Gerber file available that you can use to order the PCB with.
I’ll add more details on the build, but it’s really simple. Once you have the 3D parts, (I’ll add details about print orientation). it’s a matter of adding the PCB, soldering a thin stereo cable, and connecting the center post to the ground of the cable. You can use any cable if you enlarge the existing holes (2mm).
The base is still missing, and will be added soon.