@Reynard, as reminded by all this Mythras discussion, I think that another important question to answer for delivering a Mythic "Homeric" RPG or Setting pertains to which Illiad/Odyssey you want:
"Do you want the Bronze Age Mycenaean setting that forms the historical backdrop of Homer's epics?"
OR
"Do you want the Homer's Early Iron Age Greece that he projects back onto the Bronze Age?"
For a classic example of this difference: It's pretty clear that while Homer and his audience knew that his Mycenaean forebearers used chariots, they didn't know how they were used. So in the Illiad, chariots are used to transport the heroes to the front line like taxi cabs and then they jump off to fight like dragoons in single combat or some such. But what we know of chariot combat in Anatolia, the Levant, Mesopotamia, and Egypt around this time suggests that they were used more like tanks, archery platforms, or mobile shock troopers.
I also find that most "Bronze Age fantasy" roleplaying games as well as art tend to be
EXCEEDINGLY MORE Iron Age in their orientation than Bronze Age. So again, an Iron Age vision of Greece that is projected back onto the Bronze Age. For example, Jackals calls itself "Bronze Age Roleplaying," but the "Greek" on the cover art is firmly an Iron Age or Classical Greek design.
That's fine, but it is something that you may want to be aware of, if you are not already.