TacomaJack09
Observer
The goal is multifaceted. It needs to be soft sided so I can air it out on nice days and be able to remove it by myself for storage, it needs to be larger than a roof level shell but storable so I don't have to worry about hitting branches, it needs to not be cluttered with unimportant things you'd usually find in a camper so I can fit more gear in it, cooking can be done outside the vehicle, I need to be able to sleep above the storage area so I don't have to pull everything out to sleep. Just think of it like a rooftop tent but instead of buying one I'm building one that's larger and fits my needs better.
Check out this build thread: http://www.tacomaworld.com/forum/gr...ilitary-style-canvas-soft-top-all-trucks.html
I'm sure you could steal ideas from it.
Also, here is the water proof canvas he is using, looks like good stuff!
http://www.bigduckcanvas.com/categories/waterproof-canvas.html