I was disappointed to see the Coalition for Sustainable Rail (CSR) defer its plans for the restoration/rebuilding ATSF 3463 due to legal problems of ownership, etc., but , I enjoyed the latest copy of their magazine, Link and Motion. it almost entirely a very long article about thir current big project, the modernizing of the Harz Narrow Gauge Railways 25 steam locomotives in Germany, including some 0-4-4-0 Mallets. I liked the combination of narrative and technical data, including copies of second-by-second data logged on one loco, and discussions of where and how modern engineering is used to make measureable improvements in old steam locomotive design and performance. . CSR has clearly made itself a leader in modern steam loco engineering. There may not be much demand for that, but when there is people seem to call them, even from across the Atlantic.
CSRis a good organization and I am not the least sorry to have given them a bit of money, and while I will never get to ride the Harz Railways, nor even look at their locos since I have no plans to ever travel to Europe again, I found the article fascinating.