All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
Its won't hold. If anything you can braze the patches in. Before welders thats how all body work was done.
I knew an old man back in Alabama who could braze floor pans back in using coat hangers. He did a car for me once and it turned out great.