seven heads = kings historical kingdoms
horns = kings without kingdom combine to Rule the world
water = people/nat/langu the world of people
woman = great city apostles/Seven congregations
As I said though, you are re-interpreting the angel's words.
The angel says: "And the woman that you saw is the great city which has dominion over the kings of the earth." (17:18)
When the angel says that, isn't he telling us the meaning of the "woman" symbology? He doesn't also add, "... and in turn the city means the apostles and the seven congregations".
Why not just go with the angel's interpretations, which you correctly identified before you added that extra layer of interpretation?
seven heads = seven hills
seven heads = seven kings
ten horns = kings who have not yet received kingdoms
waters = peoples, crowds, nations, tongues
woman = great city that has dominion over kings of the earth
Why do we need to go any further than the above? With the above formula, the angel is telling John the meaning of the vision.
To identify the "woman", John simply needs to look for a city, that has dominion over the kings of the earth, that sits on 7 hills, rules over peoples, crowds, nations and tongues, and that sits on top of a "beast" (which we both agree represents a powerful kingdom) that has 7 kings, 5 of whom had fallen in John's day.
I'm convinced John wouldn't have had to look very far... :)
I think one of the difficulties you may be having is in not realizing how things like these played out in the Old Testament.
It's really important, for instance, to see how God describes harlot Ninevah in Nahum chapter 2. Here God is calling a completely pagan city, that was never married to him, a prostitute.
So the harlot of Rev 17 does not need to be married to God. The vision is simply describing the "woman" in similar language to Ninevah.
The woman plays the harlot, she fornicates with the kings of the earth
Time/place = Constantine ?
Again, I think you're mixing up the two symbolic women. The first woman (in Rev 12) is persecuted by the dragon!
The second woman fornicates with the kings of the earth. She is similar to ancient Ninevah in that respect, but this time I think it's talking about Rome, which was drunk the blood of the holy ones.
Those who lived at that time ahd a choice to make as far as I can tell they were the woman and we are the male child so to speak. Satan couldn't break them so he went after any who followed their teachings down till our day.
Yes, but I'd say the primary vehicle Satan used was Rome. As you pointed out, the Roman Church essentially took all the pagan stuff, put a "Christian" label on it, and said it was the only way to God, possessing the keys of the kingdom.
That was a stroke of genius on Satan's part :) All of that originated and was controlled from Rome.