Bought a used 03 BT Cruiser (21 foot). The PO did something to the back ladder and it is seriously messed up. Kind of looks like he hit something horizontal towards the top and the bottom. Who know...
Those "nut certs" are petty sweet. I use them a lot and they seem much more secure than sheet metal screws, plus removing and reinstalling sheet metal screws can cause you to re-tap the hole and weaken or strip it.