I cut the power cord back to about 5 feet, and stripped the extra to use wiring the internals. Instead of adding the PC power cord plug, I just drilled a hole in the box for the cord, and tied a knot in the cord so it wouldn't pull out.
I cut the holes for the sensor and outlets in the lid with one of those
vibrating multi-tools I got from the
hammer store.
Here is my modified wiring diagram:
And the finished project.
I just need to find my P-Touch label maker and mark which side of the outlet is which, but otherwise, pretty happy with how it turned out.
Can't wait to try it.