Don't worry little brother, I have gutted many a large vehicle from school buses to city buses to RV's to trains. One thing they all have in common is that they are all built surprisingly tough.
Contrary to common misconception, big government intrusion into our lives has left us with insanely stringent rules about building these things.
You need to trick out the underside of the stairs with all your electronics. you also need to extend the side rails up top so that when they raise up they end up at the height of your new sun shade.