Hi everyone, I'm new to this site but I had this problem about two years ago when I started working on my 70 coupe. The qrtr panels for the cpe and cvrt are different, the convertable has a body line that runs just above the marker light from the wheel well to the bumper. On the coupe this body line is deleted. I bought qrtr panels from mustangs unlimited and had them cut at the body line and rewelded back together for the smooth finish.