I am going to make a solar over out of a cooler.
I think it is going to be a neat project.
I believe it will be sturdy, and boat savvy.
Instead of foil I am using duct tape from a/c man. It is just as shiney as foil and it's like thick foil with sticky on the back.
It will double as storage for cooking stuff.
Strata glass instead of breakable.
This sounds like a pretty cool project. Hope you plan to photograph and document it for us to see how it goes.