In the interest of saving time; I have decided to buy a complete 10x10 by 6 foot tall kennel. They will be exactly like the one pictured above fastened to the front of the coop. That will give me five panels which will make a 10x20 run. I plan to lay treated 4x4s down on the ground for a foundation. Drill holes in each end of the 4x4s to drive a steel stake through to secure them. I will leave 6-8" of the pin sticking up above the 4x4 to set the legs of the panels down on.
The one thing I have not figured out how to "engineer" yet is the top. Most of the plans floating around in my head would be nearly as much work as building the run from scratch. I may just try to find some bird netting to drape over... At this point I will be satisfied with keeping the birds in. I have thinned the coons down a good bit so I'm not necessarily committed to building an enclosure that will keep a determined one out
Suggestions?