I don’t think it can be saved.
I'd actually be interested if I were stateside - but only if the truss rod isn't damaged. Something that old, that beat up and ended up partially neglected probably needs new frets anyway. The time cost of doing a full refret would give me a little bit of pause. But if everything else is in good shape, it'd make for a good refinishing platform.What is so bad that you guys see on that guitar ?