After many cardboard mock ups, came up with a shape for the rear skirts. Curve matches that of the one in the stake pockets and step support.
The stock one ended before the stake pocket, but have extended it to just short of the valance. Also added a rounded end the same radius as the outer edge of the guards. The roll pan will go from here to the other side.
The taillights looked a bit stuck on the valance, and when others noticed that too, I decided to do something about it. I am stretching the inside of the step I did with the bead roller for the lights to sit in. I did not pre-stretch to start with as on something like this I find it easier to do afterwards.
I also flipped it over and stretched around the outside edge of the step as well to get back material drawn in by making the step. Can see the difference on the one not done behind.
I had to make the whole panel from scratch as had to make the flanges slightly deeper so I would have enough room left for the wiring to go between the back of the lights and the cross member.
Looks a bit more integrated now. Only a small thing, but they do add up. I will make a hitch cover with a Willys badge or something on it to cover the hole.
To 'hide' that the valance sticks out a bit more, I increased the radius of the fold on the ends. Same radius as used on top edge of the skirts.