results of these dimensions? with this sub

ok i am about to buy a '02 model comp vr 12' from a friend, and i'm going to buy some 3/4" mdf for it tommorow, and the dimensions i have come up with are is it is 3 foot wide, 14 inches tall, the bottom measures 6 1/2 inches, and the top will measure 5...ya'll get that? ok i was just wondering would these dimensions suit this sub runing off 1 channel of a kenwood kac-729s amp....yall hook a fugger up i need as much bass on a budget as i can get...