No pictures handy, but I'll try to explain for now.
Coop is a converted doghouse we got for free from a yard sale (they even hauled it to us!) I think they had a St. Bernard!! I sealed the bottom, put it on wheels, raised the roof to make room for ventilation, nests & roosts, added a linoleum scrap for easy cleaning, then realized I still needed a run.
The run is framed with half inch pvc. Picture 4 house shaped frames connected at the base and again about 5 ft off the ground by horizontal pipes. Nothing is hooked into the ground as I move it to new grass, then wheel the house after it.
To prevent shear failure I cut that tallest horizontal pipe in the center (on both sides) and (for each side) I added two Ts connected by a very short bit of leftover pvc. From the Ts I connected another short bit, an L, and a long pipe. These are angled toward the ends and I used a jigsaw to cut where they lined up on the front and back base pipes. Into the cuts went another T, angled to fit that cross brace. It's pretty sturdy, made it through it's first winter like a trooper with just a painter's dropcloth for a greenhouse style roof over the netting. Had to take it off in March though... too windy. (Now we are having unseasonable rain and I miss the roof!)
Like I said, it wouldn't stand against real predators, but in our area owls and other birds of prey are more likely than raccoons (although there is a skunk and little snakes in the neighborhood.)