Back view of the controls. Note the double sided tape (optional).

Wires attached.

Routing the wires can be tricky, BUT it looks -so- good once done.

Another layer. Note: this layer is the same as before.

Lastly is the back cover for the controller and other electronics.

Put your nuts into place...

... and DONE.

Add what finishing touches you want... BUT that is for you to decide.

Possibilities for extras include:
VESA adaptor

Stand

Mounts for a pipe frame for more monitors

Hinges for a 2nd monitor so that it can be portable

(Use your imagination.)