If you're new to the faction or not used to questing areas and you did most of the collection quests, 15 days. If you're new to the faction and don't do collection quests, 12 days. If you're used to the faction, don't do collection quests and know the routes and such, 9-10 days is doable. With RAF, you can snort macaroni and cheese while casting spells with your feet and still do it in less than 8 days.