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.
I looked at the photos belmateo sent and it appears the cut was done at the spare tire seam and just behind the wheel well. You can see the tire seam was resealed and the extra support was added at the wheel well and rear trunk at the opening. Nice job on the transformation from 69 to 70, except much of the hardware was painted that should not been painted. Tire well is also aftermarket, missing plugs.