July 12, 2019:
This is no longer a remix. I started from scratch. I have a Pi 4 here at home now, and using the technical drawing and a micrometer, I am remaking this model. I'm trying to make things as accurate as possible.
Note that the flares on the ends of the micro-HDMI ports are where my dimensions are taken, so that if you design a panel to set this against, those flares will also fit through properly.
Extra details like each GPIO pin will eventually be done, but those changes won't be until after the majority of the models major components are finished.
If you like my work, consider a donation. Goes toward new filament, printer upgrades, and however many cans of Monster I need to stay awake working on printing plastic crap. :D