[VFB] Fishing Boat Question

[[EMAIL PROTECTED]]

I have a question about My fishing Boat. It is a 14' Aluminum Jon Boat... And a long time ago, a friend of mine had one just like it (My friend is not around or I'd ask Him LOL) He had decked the front from the front of the bow, to the second seat in 3/4" Marine Plywood, put down Astroturf for grip, and mounted His foot control trolling motor up there with a  captains seat just like all the bass boats. But, this boat, like his only has a 48" "beam" (widest point on top) and 36" widest on the bottom, with 16" sides. A friend of mine told me to put My battery and any other weight I could UNDER that decking or the center of gravity would be too high and would tip the boat over real easy. Problem is, My son in law had his motor in front, and battery in the front (His is only 12ft though) and didn't even have it decked etc, and when he got in the boat by himself (He's about 6' 4" and 250 pounds) the stern of the boat was OUT of the water LOL.. Any engineers here who can give me a formula or something like that???? So i can use the formula BEFORE going swimming , Chuck