I haveta second Glyfords suggestion of the small marine tank if you don't haveta run a long shift with it Sonny..great idea..maybe even find one to fit inside the old fuel tank,make a flip-top lid to protect it? or maybe just weld up an aluminum tank to fit INSIDE the old steel tank..cut it open with a sawzall and fit the new tank-in a tank..1.5" aluminum pipe screw-off lid for filler neck? Don't get any ideas either-streetsigns don't weld up too good LOL