I really like this build, but I have one issue. Maybe this is just me, but I feel like someone so focused on bring Meridia's light forth and cleansing Tamriel should have a better reason to wear such darkness embued armor as Daedric than "The Daedric armor will give him the right look and protection." Since Meridia is one of the few mostly, if not entirely, good Daedra in all of Oblivion, and thus her followers wouldn't use standard Daedric armor without good reason, to avoid being confused with a follower knight of another, more evil, Daedra lord. Something to go off of would be something like this:
"Despite the normal connotation of Daedric armor in Tamriel, the Aurora Knights prefer this armor not just for its strength or their daedric lord, but because of the colors. Despite fighting for the light, they prefer darker colors, preferably black, accented by red. The dark represents the endless night of evil that hangs over Tamriel, the very force the Auror Knights strive to vanquish, and the color serves as a constant reminder of their mission. The red represents the fire of the light they carry forth into battle that will help vanquish the evil; small at first, it will grow and one day be victorious."
Just a suggestion, though, and again, that's my only issue with the build. Otherwise, I love it. Don't see too many non-mage Altmers, despite, their actual culture and factions.

I kinda agree, as well as Merida and her followers don't consider her a daedra. But a good build none the less.

Thank you very much for the feedback! It's appreciated. Well, I see the Daedric armor as a "camouflage" against the Daedra. When they see the Aurora Knight, they will think that this guy/girl is with them, but then, all of a sudden, he/she grabs the Dawnbreaker and starts to slay them one by one. 

I like your explanation, though, and put it in and give credits Don't forget to give a +1 

Thank you, I appreciate it