Most of the Ham radio grounding foil which provides the counterpoise on Sugata was corroded so I pulled it out and was looking to replace it. When I saw that West Marine was charging $69.99 for 50 ft of 3″ wide and 0.003″ thick copper foil it seemed a bit extravagent.
So I hit McMaster-Carr and sure enough they carry copper foil in varying thicknesses and 2″, 4″, and 6″ widths so I picked up 50 ft of 4″ wide and 0.003″ thick copper foil for $38 and when it arrived I was pleased to see that it looks just like the stuff West Marine is selling!