id go with option 2. cant have an AU story if your just gonna follow cannon, defeats the whole purpose of writing an AU. anyuways you should also note that the entrance to the stone was on the 3rd floor with fluffy and theres a small drop down so i say theyd end up on the second floor after the drop into the devils snare. but you had Harry end up being in the dungeons when the whole dragon thing happened which id like to say is like the basement of the school and harry had a long drop from the basement, so i dont know how he ended up at the entrance to the stone when he ended up atleast 4 or 5 stories below where fluffy was. just somethin i wanted to point out. he should also befriend Luna just for teh comedic effect that the two can have by freakin everyone out. i cant wait to see how Harry reacts to this and what the papers are gonna say about hogwarts, i almost feel sorry for dumbles and his staff, almost. kukukukuku! until next time
-The Don