I bought a train set from an Estate Sale and I’m having trouble identifying it. It looks like the Anniversary Edition 4-6-0, but a bit different as far as parts. It comes in a big flat box that’s labeled Bachmann Big Hauler, Golden Classic Series, Sunset Route, South Pacific Coast and Limited Edition. It’s a 4-piece set: Locomotive (#21), Coal Tender (SPC), South Pacific Coast Observation Car (#41) and U.S. Mail Car (#17). I don’t see any catalog number anywhere on it or on the box and I don’t have the paper work for it. Since I don’t know any thing about it, I was hoping for someone to provide me with more information. Thank You