Unicomp model M is not the same as the original model M the typing feel is considerably different. I purchased one and ended up returning it since it was so different than the model M feel I was expecting
Paying a teacher is very expensive and a large time commitment, could you elaborate why the things a teacher can show you are not covered by online or self study
I'll call out for beginners at chess, there is no need to learn openings in order to improve at low level. Focus on just playing games and tactics (chesscom paid or lichess free). These things will get you to a level where you can start to parse the difference between openings.
I feel like this would be way more involved and many individuals have better more verifiable alibis with the things listed. Like I'm sure there will be drawback cases but it is seems in aggregate that this stuff is generally positive.
The concrete number while it would be nice to include is a lot less helpful for the average reader than something more illustrative like the elephant number.