they are. and I know the chest belongs to the caravan, but you dont need the perk for stealing and selling back to sell the items to her

I'm aware of that. Using the chest can make the caravans not appear if you use it too much during the current playthrough.

If you bump into a certain wall of a certain house in Whiterun, you will fall through the ground. There are 3 chests there, all three are difficult to reach, but each one has about 10,000 gold in it

??????