Nostalrius Begins - Quality wow vanilla realm (1.12)

Has anyone done this or know someone who has done this? How much experience would you get for doing zero quests, and exploring the whole map? What level would you get to? I saw a post somewhere that showed someone exploring everything in lich king and they ended up at level 12. Im assuming it would be about level 9-10 then for vanilla but I have no clue. Just a fun idea and thought.