I am new to this, but It seems that a 45 gallon gas tank holds basically 45 gallons = 375 lbs, so if I can find one that fits under my back sunsport seats, would that be better than sacs???
here are a bunch and I bet I can find a tank that will work? You guys have all of the experience, so Let me know
thanxs
here are a bunch of sizes off the bat

http://www.overtons.com/Boating-Mari...eck-Fuel-Tanks