installation of convert top 63 dart

Thanks for your quick reply...Here goes the adventure...
I still have confusion... Let me see if I understand correctly looking at your photo I cut what is necessary to get to the top ridge of the quarter panel after pull down another 1" + or - from the green line shown upward. Could you use a different color and mark your existing photo to show where to cut. It will help me to understand the point you are trying to make. Fyi cutting that extra inch or so...leaves the reinforce area on my top. Thxs for your time and help. I'm bewildered