I like to wrap some kapton tape around LiPo batteries, before attaching velcro. This gives me peace of mind when removing the battery, that I'm not placing direct force onto the foil wrapping the battery.
For final assembly, make sure none of the wiring is snagging between the top and bottom panels.
Insert the M3 flat machine screws into the top 4 corners.
Because of some tolerance issues with curling on mine, there was a bulge in the front. I fixed this by affixing a facade plate with cyanoacrylate glue, and then sanding down any protrusions. This single fix saved an enormous amount of time.
For the labeling, I used thin charting tape, 1/8" wide. It's available at craft stores. I chose black, because black is all that was available.
I then used a white paint pen.
For ease of reference, I labeled all of the buttons. It makes it much easier to remember some of the hot keys on the fly.
Charting tape does not have a strong adhesive, so I dabbed a small amount of cyanoacrylate on the ends of each strip to prevent it from curling up.
Underneath the Cut arcade button, you'll see two lights visible on the frame. The blue light means that the circuit is on, and if plugged in, the amber light means that the LiPo battery is charging.
And just like that, you're done!