Waiting for the hinge to arrive in the mail, decided to start on rolling the leading edges. Pretty decent on the first short one and got started on the middle section. I have all sorts of tubes and tools to use and made good use of most of them. The curtain rods with the sockets in the end of them are very helpful here. Just a lot of massaging, bending, more massaging, bending, rinse and repeat until the shape is about right. It will never be perfect. Just so there's not undue stress on the holes when they're riveted together. I even busted out the rivet gun and used the technique used on the ends of the trim tab tabs to flatten them out. Worked great on one little section of the first rolled edge.

Didn't get too far, the second section is already being a pain so will have to try some different techniques on it tomorrow.

Pics below show several stages along the way as the bends get closer and closer to where they need to be. Used a cutout of the example from Drawing sheet #4 as a guide.