Its true that the advice could be daunting if you don't have a whole life in the subject like many of us here but that's still partially the OP's fault for not being up front about their level of experience.
Few of us want to assume that people have no knowledge it could be seen as insulting.
So most try to pitch it at people who have electronic knowledge just not in vintage electronics which seems fair if no other information is given.
I must admit I rarely get involved these days in anything to do with record players or HiFi, that truly is a thankless task
I mean no criticism of the poster but when I read the term "valve rolling" I decided to read no more posts on that thread
Cheers
Mike T