Some of you have PMd asking for pictures. This is my first time adding photos to a reply so here goes nothing:
Here is the connection in the front area(the other side of the basement wall)
Here is what it looks like from passenger side. We wanted the ladder to be easily accessible for emergency use:
Here is how we locked the chairs into place:
The hardest part is making sure you aren't inserting a bolt through some wiring on the front area. We triple measured to make sure we were in a safety zone. We even drilled a test pilot hole so we would know exactly how everything lined up and we measured from there so we would know where the drill would come through on the front wall.