Excellent work with the potential break up sequences.
I have difficulty accepting that the tail section could have flown up and flipped vertically, landing upside down. Such a scenario would surely have crushed or badly damaged the vertical stabiliser. From the photographs, that appears the one piece of the aircraft that survived virtually intact.
Whatever mechanism inverted the tail section therefore had to be at a relatively low energy, just enough to flop over into the inverted position without destroying the vertical stabiliser.
This suggests a largely horizontal movement of pieces of the aircraft along or parallel to the ground, rather than cartwheeling high into the air.