67 barracuda notch back window rust repair

Your probably right I am. Do I need to remove the glass to remove the vinyl top? It does need to go for good.

Trunk looks good, some surface rust under the back window deck area but not bad, looks like from condensation. It sat in a barn for years with leaks and water ran to these rust spots. I don’t think it leaks but it very well could.
Ultimately, everything need to be removed for the repair. I would use a razor knife to cut off the vinyl next to the molding and the glass rubber seal to give it a chance to dry out and to try to find the extent of the rust. That's just how I roll. Gotta start somewhere. Ease into it.