Hi everyone I have a 87 LX 5.0 my passenger side quarter panel is ate up from the rust only around the wheel the lip only. There is a 85 mustang convertible at the junkyard with good quarter panels. I just want to cut the lip part off around the wheel to replace mine… I’m thinking it will fit but if I’m wrong can someone please let me know ? I would hate to cut it off and pay and the part not fitting..I know by it being a convertible the panels are different but I just need the lip part...

Quarter panel rust advice needed