Hi! Am trying to find a door handle for my 1976 Skamper (Not Scamp, an entirely different brand). I have checked with RV dealers, and several junk motor homes. All the handle/lock inserts are larger. The opening is 2 1/2" wide, and 3" high. Any idea qwhere to locate one? This is the lever handle, not knob style as in a house. No RV junk yards around here. This was missing when I purchased the trailer.