Also about the awakened society/core - one thing in particular comes to mind. The mythals or whatever from forgotten realms the elves use to use epic spells with, and the netheresse. Now picture them with the stored memories of a couple hundred thousand citizens. Behold. We are legion. It would likely be neutral/friendly with the people living near it/in it because, after all, a good percentage of them would be family to the memories/souls within the city/core, and would want to protect them by any means necessary... it would, in essence, be a man-made god with enough souls added to it, and would perhaps draw ancestor worship?
I don't know about neutral or friendly, few things are more terrifying than the faceless mob.

I don't think that the gasalt would have the complete memories and experiences, just an impression of the strongest or most pervasive. (OH god shades of undead sentient internet) Something about this set up seems ever so slightly dwarven.