"jplante4" said it well. Often you look at something, you realize it doesn't look right, but can't put your finger on it. When people look at your motor home with plastic tubs stuffed here or there and stuff in the drawer, they may not realize they don't like it, but do realize for some reason it's just not for them. Make the coach look as nice as possible with nothing in it.
If you have spare parts, there is nothing wrong with placing them in a cardboard box, seal it up and place it in the storage bay, labeled spare parts.