Unfortunately, the Lionel Corp. (MTH) 11-80035 is a quite scarce piece, as folks are learning. The only reason that I have one for my Red Comet set (Lionel 6-51014 Prewar Celebration Series) is because I preordered it with Side Track Hobbies in 2013. If we come across one, DOC, we can let you know.
Happy hunting.
Bob