Here is a product that might be of interest.
I used this on my roof rack its strong enough to walk on it makes a great platform for photography and is lightweight. Its like the thickness of a plastic milk carton. It also shields the roof and keeps the temperature down like the tropical roof. This will also make a great Molle panel for all the bags you make.
PolyMax Flooring improves animal health and bird productivity, while keeping kennels and poultry coops cleaner and drier.<p>• A clean, comfortable floor keeps animals healthy and happy!<br>• Foot problems and breast blisters in poultry virtually disappear.<br>• Rugged, non-porous polypropylene...