Several things regarding older cars I have to respectfully disagree with.
One is the premise that a contact point’/carbureted car needs a tune=up once a month. It’s been stated by several people on this forum that contact points have to be replaced every 2000 miles. That is absolutely not true unless someone is botching the points installation. A set of points properly gapped and with the distributor cam lubed should easily go 25k miles without touching them again.
Two is the premise that older cars did not and could not attain high miles without an overhaul. Again, not true. What’s not mentioned or thought of is that older engines back in the day did not wear out prematurely because of poor construction or shoddy materials. It was due to lead in the gasoline. Nothing more.
There’s other fallacies but you get the point.