In #6 you can uses the stairs for a fire escape , just break a window and jump onto the stairs.
I had s client you just moved into a new senior housing apartment and my client had to keep all her dishes on the floe in a box b/c she could not reach the bottom shelf in the cabinet . The cabinets were installed so high none of the residents could use , I am 5'6 "1'2 and I could barely get a dish on the bottom shelf and when I tried to put my client silverware away I could not open the drawer b/c it was blocked by the fridge . The contactor think not stop to think that elderly people would not be able to climb on step ladder to put their dishes away , I think when contactors are going to be building ramps or hosing for elderlies they should talk to they first b/c able bodies men do not get it what it like to be old or in a W/C.