I just started working on the rockers for my 74 k5. Where did you end up buying the panels from and which ones? The whole rocker box support structure under mine is rusted through. I will have to fab one with square tube or something. After reading the above it said that there should be 3 edges for the weather stripping to sit on. Floor pan, rocker, and the outer rocker. Mine were so rusted that you can't see where it was. Does anyone have pics of the 3? Does the floor pan curve down into that valley and then bends up for the weather stripping? Have you fabbed up the 3 tiny brackets for the trim screws? I also am looking for that piece that goes up and holds the door striker as the corner is rusted out. Keep up the great build though. It looks great!