Just came across this deal, http://www.instructables.com/id/Installing-a-ball-valve-on-a-Coleman-cooler/ and thought it may be a good buy to try to build this http://slickdeals.net/permadeal/76446/ace-hardware-48quart-rubbermaid-victory-cooler-red, as a potential mash tun, or wort chiller? Any...