No to your paragraph one - the man was the individual Israelite under the law...Rom. 10; already cited.
As to your paragraph two, as usual, unless you are spoonfed what another has asserted all along (the crippling result of your OVER RELIANCE ON ENDLESS EXTERNAL SOURCES) you are able to see it.
How many times have I cited Acts 7:51 along with Matt. 12:30-32 as to apostate Israel - even before you and I were on this site.
Re: Your paragraph three - "we have found him who Moses..", and "ye search the scriptures because...", and "had ye believed Moses..." fill those in; genius.
Your paragraph four - recall Paul's stern "because they sought it not by faith" (connected with my answer to your paragraph three).
As for your last paragraph; not worth bothering with; I have my nose in Scripture on these issues, not in YOUR actual "bible" - those endless, brown nose EXTERNAL sources you are ever singing the praises of.
re "The man who does them"
It is sarcastic. They didn't live! It's part of the tutorial to lead to Christ, not the other way around. That is why Christ's work is mentioned so immediately in the next things he says!
What they should have concluded from the Law was not that it was an alternate path, but Rom 3:19, 20. How could anything be more clear?
re Acts 7 & Gal 3:17
Why did Paul write 3:17? Spoon-fed? Schmoonfed. You don't know why because you don't do why.
re finding Him whom Moses spoke of
...is not a law. It is Gospel. Do you know the difference between 'indicative' mode and 'imperative'? There was an imperative, of course: to LISTEN to him. Err, how do you listen to him until he has come?...
re keeping the law
One justifies and one does not. At least you're getting close, but you are not making the distinctions Paul made. As with Abraham, justification always was available by faith, and it always was the crediting of righteousness. The Law was trying to prove it had to be, but you know people. They'll take it to mean something else for some other reason.
What question in all of this are you trying to answer? What do you think needs to be answered? There's still a chance I can understand you. By not referring to Rom 3:19-20, or not knowing it's there, or not being able to say why Gal 3:17 was written, or not factoring in the 'tutorial' role of the Law, I can't agree that your "nose" is in Scripture.
All of those passages just mentioned, btw, are internal, not external, do you see?
It will save much effort if you agree where possible.