I fail to completely understand what you've posted. I can see that the witnesses can represent the Law and the Prophets, (Moses and Elijah},
Zech 4:3&6, The 2 witnesses are the word of the Lord, literally, "in the flesh".
But what flesh, does the "word" take?
Not Jesus, He was already here. He is the Word of God "in the flesh".
It was His spirit that was the Word.
The spirit of God's will put into words and given to the world.
Israel is the "flesh" of the Word Matt 24:22, just as Jesus is, just like we as Christians are by the Holy Spirit Acts 2:38.
The words of God are inside us, part of us.
Israel is the "embodiment" of the Word.
We pass on the words of God, the spirit of God's love to the world.
The words of God bring life and love to the world, His words are the fountain of life that flows from the throne Matt 4:4.
The 2 witnesses are Israel, the natural branches.
They have the Law and the Prophets, but not the Holy Spirit, or there would be 3 witnesses.
The Word of God, has kept them alive through the ages, causing them to be persecuted, but also causing them to survive.
Persecuted by Roman nations, but they were unable to completely destroy them.
The powers that attacked Israel, were themselves destroyed by the words of God, Rev 11:5.
Rome, Hitler, all have fallen, but Israel remains.
but a large part of Jerusalem was already in Israeli hands before 1967. They then took the Temple mount, East Jerusalem and the west bank which was part of Jordan before the six day war.
The times of the gentiles end when Israel is restored to control of Jerusalem Lk 21:24.
The city is now completely under the control of the Israelite military, that is all that is required by Lk 21:24.
How exactly is the three and a half times divided to stretch from AD70 until 1967?
The 7 times is divided into 2, 3 1/2's.
The 1st 3 1/2 times is from the declaration of the angel in Babylon, Dan. 12:6-7, until 70 ad when the power of the holy people is scattered.
The 2nd 3 1/2 times is from 70 ad until Israel is restored to control of Jerusalem.
It is this 2nd 3 1/2 that the Revelation focuses on.
The 2 witnesses are outside Jerusalem for the times of the gentiles,
When the times of the gentiles end the natural branches return to witness there.
The woman of Rev ch 12, is chased by the waters of the dragon nation, until she returns from the wilderness to Jerusalem, home.
Both examples show the times of the gentiles until Israel is restored to Jerusalem.
This is the same time as the statue of nations in Dan. 2.
The statue ends when Israel is no longer under the rule of the gentile nations and is restored to Jerusalem.
This would complete the 7 times.
and what exactly is Israel supposed to be witnessing at present seeing that they are still in a state of unbelief regarding Christ as their Messiah.
Israel is witnessing through the OT, Jn 5:39.
They must accept Jesus, Acts 2:38, to be saved, but they have not recognized their own witness, yet.
I don't think, that as a nation, that they will accept Jesus.
But I believe that all of them who do accept Jesus will be saved, although they might not be in the majority.
All who claim to be Israel, are not Israel in God's eyes, only those after the spirit.
So it's hard to tell exactly how many will believe.
It is only at the second coming that a remnant will be saved
After the 2nd coming, then comes the end, when death is destroyed, and Jesus delivers the kingdom up to the Father, 1 Cor 15:23-28.
The remnant who are saved at this time are those who accept Jesus and are eternally saved.
There will be no flesh after Jesus comes, 1 Cor 15:50.