[tinkthank]

Cherry, I think your idea is noble, but am not sure it would be "worth it" in terms of the hours and hours you will need for testing, because "very difficult research" and a few spell mods will accomplish a similar effect. Balance mods such as this are extremely complex (doh!), since you will have to contextualize the increase of price for individual nations in comparison with the strengths and roles the mages play between the nations.

That being said: looks nice!
I would prefer fewer changes to a few mages. I particularly welcome a small price increase in the Caelan mage.
I think a thematically sensible change (which I have tested and liked) is to make the New Era Pan 2E2N1? (that is, in the New Age, the Pan's Nature skills have decreased due to their increased love of steel), but they keep a random.

Good luck!