gave it thought. i built 3 steps in the stairwell, giving 4 steps total. it sure helped! BUT, the bottom tread had to be slightly narrowed for the door to shut. i dont like that because it could cause a fall. the stairwell needs to be removed, cut a few inches from the cab floor and then build another stairwell/stair. i also built a 2 stair step to put on the ground when parked, it nests on the stairs while traveling. another mistake is i made it too narrow. another area for fall hazard. make steps as wide as possible.
when i can, i will revise. i will cut the old stairs completely out, build stairs from metal, and make the well a storage area for tools, batteries, etc. a double accordion step will go under the bus like rv's have.