I am trying to find a 1/2 bathtub for for my big Agnes tent, formally golite Shangri-la 5, they bought patent ? . can you or anyone steer me in the right direction . I have the inner which is much to heavy and not what I want. I'm turning this into an ultralight hot tent, lite outdoors titanium stove is less than 3lbs, and tent without inner is suitable for ultra light backpacking in winter months. I like the security I get from bathtub floor, and because of size I want to find a 1/2 bathtub floor . any help will be greatly appreciated