Cleaning up around the property, I come up with this.
I cut the side wall from the tire with a jig saw, and a fine metal blade. I measured the diameter of the tire, and used the old 2x4's to make a frame. 1/2" hardware cloth is cut to fit the bottom.
The frame is fitted inside, and a can of GreatStuff was used to lock in the wire back. (the brick in the center is to hold the wire, while the foam expanse )
Strips of tarp were stuffed all around the sides. There are only 3-5 layers in the middle, where the hardware cloth is.
Next, a bag of "Rubber Mulch"(shredded tires), and another can of expanding foam around the edges.