Didn't one of Dragon Captions mods also rebuild Kvatch? I'ts been over a year and half since I played any of those mods but I think they did a fairly good job too.
The three big rebuilding Kvatch mods are Kvatch Rebuilt, Kvatch Aftermath, and Kvatch Rising. There is also Kvatch Reclaimed, which as was said above is basically screenshot eyecandy and not a quest mod.
Dragon Captions was involved in Kvatch Aftermath but Giskard took that private now. He has made yet another Kvatch mod, Kvatch Rising. That one is supposed to be the most lore-friendly of the three "restoring Kvatch" mods.
I have not tried Kvatch Rising yet. Kvatch Aftermath is kind of fun, but it's aimed more at power gamers who want sort of god like trappings - you become Count/Countess of Kvatch rather quickly, you live in the incredibly sumptuous palace with dancing girls, and you fight big battles. Kvatch Rebuilt is more in keeping with the tone of the basic game IMO. You do a bunch of smallish quests that indirectly help to rebuild the city -- stuff like stopping a bandit ring that is robbing supply convoys -- and at the end the city gets back on its feet. You have the option to become the ruler of Kvatch yourself, but it's not automatic.
And yeah, Kvatch Aftermath is just chock full of dirty edits. You basically have to put it first in your load order and hope for the best, because it conflicts with pretty much everything.