I recall my dad having a Stanley Steamer in the barn. It was his intent to restore it but he never had the time, so his brother expressed interest in it. He gave it to his brother, who stored it in his barn ...as luck would have it, the barn as struck by lightening and burned to the ground with the Stanley in it. Sad.
My late Father-in-law used to work at a shop that restored early auto’s, including steam. His aspect was taking completely rotted engine parts, figuring out what the part actually was and what it did (they even did restorations on cars pulled from under water for 80 years) and then machine exact replicas from identical type metals. I was told they did the restoration work on Leno’s Stanley.
I was perusing an add for a mine for sale in, IIRC, Arizona, a couple of years back and a neat aspect of it was that the fully functional ~100 gpm dewatering system was a steam engine built about 135 years ago. There was only one or two others still in existance.
I love uncovering bits and pieces from the age of steam metal detecting, and stumbling over the monster cores of the engines or devices they powered while prospecting. One of my regular haunts has an 1890’s McFarlane Brothers jaw crusher and power sluicer sitting forlornly in a gulch. I’d love something like that in the front yard (when I get one) but it’s mass is just to great for economical recovery, and since my last trips in the fall some knob torched the remaining flywheel off of it.