I went to an op session on a large HO layout yesterday, and very close nearby is this:
It's sitting in the back of a grain-feed-trailer place near the airport. Though the staff there says it's been 'restored', I it's really a slightly smaller than 1:1 scale replica, built by a guy nearby. I could only find this mention of it along with the coach that was built at the same time. But solid info is really hard to find.
At the end of this line, there's a 3-foot shay slowly being rebuilt. There were parts of that and NG freight cars scattered all over the place.
It's just a straight stretch of track right now, but the people there claim they'll run trains there once the Shay is done. I won't hold my breath waiting for it, though.