All in one pc on the cheap

Def would choose different mats for the added casing.

When my old a6 laptop screen broke I used an external monitor and just screwed the lappy into the wall with 2 1/2 inch wood screws next to where the hinges were and got a trackball mouse and keyboard set until the rest of it died. No fancy case. Easy Peasy. Put the monitor in front of it to hide it.