If you have any tractor graveyards or junkyards near you, that would be a place to look. The MF 35 rear light was on a rounded fender also, so it may work. A bracket attached the light to the fender and the wire ran on the inside of the fender to the front. You could probably use any light and just manufacture a bracket for the fender, unless you want it "correct" for that model of tractor. Good luck.