This is an answer of a post five months ago but ive seen longer reaching nekros. So;
While i am interested in a game set in ancient greece im not sure Lords of Olympus woudl be the right choice, the characters are too powerfull. Mayhap im wrong but they are superhuman. That raises some questions on what enemies can be a challenge enough to fight them. Now if i am wrong about this please offer your clarification if you want. If i am indeed wrong, i would like to participate in such a game to find out empirically.