Fresh Air Door

I almost did the same. After soaking it for half a day in rust remover, and then for a day in PB blaster, one of the 2 rivets moved. Thinking I had freed them, I began to move it when I saw a crimp and tiny cut form on the opposite end which had not freed. I caught it in time. I've never done any of this work before so I truly appreciate what I'm reading here
Just realized you were so close. Might have to have some local mopar therapy sessions. @BrianT