Has anybody out there ever converted a GOTT cooler into a bait tank? I'm looking at buying a round bait tank and they're rather pricey. I was thinking of making one out of a round gott cooler, but the biggest one I can find is only 10 gallons. I'd like to have 20 or 30 gallons. Does anybody know if gott ever made a round cooler that big? I've thought about using a plastic drum, but an insulated bait tank is a must for me.