Hi We have always been 5th wheel users (still are) but we hit upon a super deal on an Alpenlite Camper. We have a one ton, duelly Chev Pick up. The camper is 11ft. Here are my basic questions. 1. I remember when I was a girl, my uncle had a camper on his truck. He had two things as "necessary" items. He had what he referred to as a "boot" that fit between the cab of the truck and the window of the camper so he could have a crawl through area. He also had some kind of an inflated cushion between the roof of the cab and the bed area of the camper. Are these items still "necessary" and if so, where do I find them? 2. Where we have our 5th wheel hitch in the truck, there is a flat, metal piece that remains in the bed of the truck. Do we need to cover that with a piece of plywood or leave it uncovered? Will it create any harm to either the camper or trailer if left uncovered? Thanks!