Almost two decades ago my father gave me a Pentax camera. I think it was a K1000. However, it was stolen many, many years ago when the house was burglarized. I've always wanted one like it.
Today I was at a shop and saw what I thought was a K1000. I inspected it and bought it. As soon as I got out the door I realized it as actually a Spotmatic F.
You lucky GNU/Linux hacker!!
Look, the K1000 is inferior in build quality to a Spotmatic. And you have the ultimate Spotmatic model, the Spotmatic F. I have been wanting one for long, yet haven't found one in my country.
So the Spotmatic F is much superior to the K1000!
What sets the F apart from other spotmatics,.is that it can meter without having to stop down the lens. This is a big deal for a camera with screw mount (M42 lens mount). For this to work, you need to use Super-Takumar or Super-Multi-Coated takumar lenses, which are slightly better.
Good news is, those Talumar lenses are the best built japanese lenses, and I say this despite owning many great Canon and Nikon lenses. Optical quality in some cases is also fantastic. Super-Multi-Coated lenses almost always produce excellent color, too.
The 50/1.4 you have is a classic.
Bottom line is -- spare no expenses to get this camera back in shape!