Thanks guys.
Greg, I'm planning on using corrugated metal barn roofing. That's what I spaced the ribs out for.
I spent another solid day working on it. I got a lot done but not as much as I had hoped for. Since I'm by myself I have to clamp a lot of boards in place before I can screw them together. Another set of hands would make it go a lot faster.
I finished installing the rest of the roofing ribs.
I framed up the storage area/bed frame.
I cut out the door opening.
I covered the walls with roofing felt. That should help keep the water out. I used a chalk like to mark where the cross boards are located. I moved all the barn siding to the building where I'm working on the camper. I should be all set up and ready to start putting them on in the morning.