There isn't much I can do about compatibility with some other mods, since AGA and Hegemonia change so much.
Hegemonia + AGA is indeed both mods together, so you only need to use that if you want both mods (doesn't include AGA textures).
I am not going to make any specific changes to the AGA portion of the mod, as that is not my intention to alter their work. I simply wanted a combo mod for those using both mods.