Stove jack is the same ones they sew into wall tents, generally made of fiberglass, expensive, $25 or so.

We go back in about 4 miles from the road. I was a cowboy in a former life and two of our group from Nebraska are ranchers so we had lots of horse experience on hand, though I've got to tell you that you can never let your guard down with them, especially when you are out of practice like myself.

EKM