Playing the weight game on the boat I am building and cant decide where I want to put some bigger objects like the 3 troller batteries and gas tank. Plan on upgrading to yamaha 175 SHO which weighs 480 lbs. want run atleast 32 gallons of fuel. Where would some of you run the tank or troller batts. Even thinking possibly run two tank on port and starboard under cat walk. Any opinions?