I have the full set of Harry's Big Mo train. He was my close friend. He did make an engine cab for the Big Mo Train. I have the engine on my layout. It was a Lionel Cab. Custom painted and decaled by Harry. He passed away before the actual powered engine was completed. Upon his passing, I helped with some the items he still had for sale. Among the rolling stock and engines were the cab proto types. I received those from Harry's widow at the time. I found a compatible Lionel chassis and now I have the whole train. I also have several nice cardboard buildings for O gauge, that Harry made personally. We became good friends and when I traveled to Meadville, I would always get together with Harry. I would go through the trailer with the trains. The layout was very beautiful and depicted certain periods of history and landscapes. Just wanted to add this FYI.
John Todd