Yay.
The NPCs...
1. The whole Temple of Alkosh (wherever you'd make it fit), full of Templars. They are honorable and quite peaceful...But they are knights, so they wear unique armor and carry fine weapons. These priest-knights shall welcome the player in the Temple, when he brings the Chosen. They all talk alike with "Blessings of Alkosh" and in the end honor the player with the title of Aaliter, making him a templar.
Think they should be talkative, but revealing no secrets of the Temple to the player before it's time.
2. The Chosen. I'm not sure what the main problem of the Confederacy is...the smugglers? The tribe wars? The Chosen is a key to solve it...BUT now i think that he should probably be a warrior of somekind, not a politician, cause then Akatosh's help would be kinda...difficult. Anyway...there's a young Chosen, who has no idea of his fate, and there's the player to find him and convince him to go to the Temple (probably by saying "You're the Chosen of Akatosh!"
).
3.There are obstacles...Most probable - they are jihatterr, cause a khajiit would never harm neither a Templar, nor the Chosen.
Now... There are two ways.
1. Dead Templar -> Note with Riddles -> Info from a native -> QUEST ITSELF
2. Dead Templar -> Note with Riddles -> Info from a native -> Temple -> QUEST ITSELF
If the player has to come to the Temple...he'll probably give away the armor of a Templar. Means he's not one of them and renriji will want attack him...
But if it's the first way, then wearing the armor the player cannot be attacked by a khajiit if he doesn't attack first.
So the plan will look like this:
1. The player finds a dead body (some accident happened) in Templar armor.
2. He finds the note with clues of the Chosen's whereabouts.
2.1. If the Player is a khajiit, he knows what to do, if not, he consults any khajiit around.
3. a) The player follows the clues to a distant place (the Chosen may have problems from the very beginning, so there might be a fight)
b) The Player goes straight to the Temple of Alkosh, giving away the armor, and getting the ultimate info on the Chosen. Then he searches for the Chosen.
4. On finding the cat, the Player has a lot of problems on the way back as well. Bandits, monsters, sandstorms (We can wait till the storm's over right in this cave...).
5. Back in the Temple the Player is given a title of Aaliter and a set of armor. He's now a Templar of Alkosh.