So I bought an IBM PS/1 2011.

I got a really good deal for it on Craigslist. The computer, a mouse, an IBM Model M2, some floppy disks, all the original manuals and programs all for $85.
Sounds too good to be true right? In a sense, yes.
Despite everything being in almost perfect condition externally (little UV damage, no scratches, no permanent dirtying of any kind), the PC is missing the internal hard drive, the RTC chip is out of battery, and the keyboard’s capacitors are dead.

I ordered some new capacitors for the keyboard (and will probably just replace the capacitors in the computer itself just to be safe). Those should arrive tomorrow thanks to Amazon Prime.
I found a very nice and detailed guide for how to fix the keyboard. It seems like the capacitors dying in this specific model is a common issue.

Will post more updates soon.