Changing the rear quarters on my Dart conv. from a 69 to a 70

I believe the trunk floors are the same 67 to at least 72 so I think all A bodies use the same frame rails so that shouldn't matter. I am only going to be changing the rearward most part of the quarters and yes I have given consideration in needing to incorporate the side markers as part of the changeover. As I stated earlier I have ALL of the 70 parts to do the change including the front group and any necessary wiring. I am only interested in photos of where to cut the quarters, the rest is easy. I can figure it out on my own but sometimes it's good to see how someone has done it so you have a better idea as to where to start.