I wire wheeled it really good. Cleaned it with brake clean. Tried flux core solder. Tried hard silver solder with mapp gas. I don’t think I want to make new steel patches and try to braze it with oxy/acetylene. It gets red hot with mapp gas in a second because it’s so thin. So I’m just going to drill out my rivets and I’m back to jb welding my patches on, but thanks for all the advice.