I finally got around to a picture of the very simple but effective stands we use. Just a 10' length of 1/2" cold or hot rolled steel. 2 90 degree bends 4' in from each edge. Slide a 6"-12" chunk of chain onto the 2' flat and tack in place. Hang the targets via S-hooks. Sharpen the ends of the 2 long sides with a grinder so they'll stick in the ground more easily. They cost about $6: