To demonstrate the system, I've developed the 3D game "Asteroids VR". Put the headset on and you'll be sitting in the 3D cockpit of a spaceship blasting away at asteroids that appear to be floating towards you.
I've got pictures, video, circuit diagrams, a bill of materials, and lots of descriptive text on my github page (https://github.com/nickbild/vectron_vr). My Vectron 64 computer (https://github.com/nickbild/vectron_64) is similarly documented, so it's possible for others to build their own complete system.