You could always start converting all baked NPCs to High Elves >.>
Regarding world changing, I use the MEFix purely for cosmetic changes, swapping a building around starts to border the 'cheat' zone which I don't actually want anything to do with.
Changing the colours of the buildings to a more High Elven scheme however I won't say no to, just no direct editing on the buildings themselves
With mounts, do people prefer Hawkstriders, or a Palamino (non elite) Horse?