Single Status Update
It appears that the $2 AliExpress carbon contact paste worked beautifully. PET’s keyboard is completely operational now.
Used this stuff, although I remember it being cheaper when I bought it. AliExpress prices seem to fluctuate randomly. A downside to these is that the stuff dries too quickly, making it difficult to tell if a coat has been applied to the contact or not. I recommend you use a soft brush.
Also: Shit, just noticed the V key isn’t quite working yet. Now I gotta unscrew 12 philips head screws and 3 billion tiny flathead screws and desolder the shift lock switch and repaint the key and repeat that in reverse order. Sounds like fun.