I found it easier to go right back to Babylon accounts taking note of the cult of Dionysus, and then Zoroastrians, and watch how their history is overlaid time and again on with changes of name, but this may not be of any use here of course. It's frustrating too how subsequent generations rewrite history.
When trying to unravel puzzles I have on occasion emailed University professors and had excellent responses. The experts at Museums are extremely knowledgeable and friendly too.
I love the stories anyway.
Enjoy your research Yve