Joe, When I bought my first Integral (first cargo container over) The canopy set up was different then the current. The carbon canopy was 7 oz lighter then the deck/polycarbonate setup.
Then the Integral was being produced and shipped with the Fiberglass canopy which is 2 grams lighter then the carbon canopy.
I agree to purchase the carbon canopy today would be a waste of money, But, back then it was quite a weight savings.

Carl