Well, there is no special thread for congratulating you on developing this really impressive mod - so let me do it here :-)
Great Job!

Some cents to the topic:
Generally spoken, the further you go backwards in Time, the closer you get to the Matriarchies whom all the ancient Sagas revolve around. Most of these Cultures flourished in the late Stone / early Copperage (yupp, that's wayyy backwards LoL)... and that is a problem, because we simply haven't got enough archeological data for drawing a precise picture of the life there. Even in Iliad times we would have some issues, cash for example LOL
Money hasn't been invented, so, how you gonna "pay" an army?
The Era you are talking about currently is a lot better for Playability and with more than enough historical data - but it can only be played on a "what if" scenario, because all of the great Matriarchies had arleady vanished a long time ago.
The Thermodon-Iris-Delta-Cultures packed their bags and went east (this is a loose hypothesis of mine. They propably ended up in Mazandaran, a Province of Iran, where they are still today. According to historical data, they kept their way of life until ca. 1500 a.d. (!), and a lot of Battles were recorded in that time, either with or against these "Amazons". Mazandaran means, loosely translated, "Land of the Female Devils") and the Libyans simply faded away.
By the way:
Personally I doubt that the Libyans can be identified as Gorgons. I have a thesis that the early Minoan Culture is the basis of the ancient sagas of the Gorgons. If you take a look at all the Findings of the Minoan Culture, things become quite creepy...
It once has been a Matriarchy with a weird fetish for Snakes and it is archeologically evident that they ritually slaughtered captured young men of other cultures.

Again, congratulations on this fantastic mod. Don't forget to post where one can order your Book when it's finished.

Yours,
Nietzsche