I just recently took out the old 6 gallon square aluminum gas tank out of my 1978 vip boat. I am trying to replace it with a plastic 6 gallon tank from academy. I am wondering how to get a filler hose from the new tank to the metal filler top. Other than going down to the hardware store and piecing together some parts do they make anything that makes my goal easier? Like a 2" female end going into a 1.5" hose?