"4. Jeremiah 31:33, 34 and the prophecy there (in light of Psalm 1:2, and particularly as to where the law that is to be "read" would be written... and when... which I concede might require some explanation of at least Luke 22:20; 1 Corinthians 11:25; and Hebrews 8:7-13, if not others); and"
I think Jeremiah 31:34 answers that question
"No longer will a man teach his neighbor, or a man his brother, saying, 'Know the LORD,' because they will all know me, from the least of them to the greatest," declares the LORD. "For I will forgive their wickedness and will remember their sins no more."
and take into consideration Galatians 5:14 "The entire law is summed up in a single command: "Love your neighbor as yourself.""
"the law that is to be read" Where do you get that the law "is to be read"? I see no need (I didn't say I see no blessing) for "reading".
What reading is needed for one to love his brother? Christians live by the Spirit, not by reading the law. The law is within them, made part of their nature by God.
Peace