My Dad has just passed on to me his Aquasport. My kids learned to ski on it, so I am very happy to have it. It's in great condition, except for the gass tank. Making a rush job of it last summer (trip to the beach deadline) he replaced the gas tank with an in-hull plastic tank from West. The replacement tank was put in backwards, so the sending unit is at the front (stalls during acceleration with 1/2 tank), and the fill was relocated to under the console front seat. I want to fix it right, back to the origin fill tube in the gunnel and a properly installed tank, (aluminum?). Is that hard to do? How do I find a "retro-fit" or custom tank? The average full service boat yard? Suggestions on where to start would be helpful. I'm in Grand Rapids Michigan.