I am planning a trailer rooftop tent, probably using a springbar tent for ease of set up. I have 3kids, a dog and my wife. We own a Maggiolina Medium for My bride and to sleep in. The Kids and the dog go in the springbar. Waitiung on my Trailer from Wayne Percival to finish. Looking to use PVC Boar and aluminum frame. ANYBODY HAVE THE PLANS.........for a foldiing box/ floor Thanks