The rear section is actually fairly straight forward. I fabbed up an inner drop off section out of flat steel. Then I chopped another patch out of the skin. Look at all the extra steel they sent me with my patches! I had to use the body line on the skin as the rust had gone above it on the car. I gave it a test fit, that's where I'm at currently, OK actually I'm taking a beer break! I will remove the patch and weld in the extension now.