I meant the reciever battery pack goes into the pilot.To elaberate on the fuel tank the hardwire is like a bracket. You could make a replacement using 4-40 type control rod.Bend it into a rectangle with a hoop on one corner,the hoop will attach to the forward bolt on the frame.Thats how the original worked.The tank is an odd shape.Its larger at the top than the bottom.It has a lip in the middle.It sits in the rectangle hardire.I can take some pics of mine next week if you want.