I went to the LA County fair after the restoration of 4014 was announced but before any activity had commenced on her. 4014 was one of many large engines on display at the Rail Giants museum. There were a few people looking at the engine at the time. Going up the wooden staircase to the cab, I saw and met a gentleman in the engineers seat.
This was Paul. Paul had taken it upon himself to keep the running gear , including bearings, lubricated over the previous decades. It was his work that made 4014 such a good candidate for restoration. There were other Big Boys around the country that had boilers in better shape, but the running gear of 4014 was in the best shape of all the remaining locos.
Paul spent about an hour explaining all the gauges, dials, valves and levers to me. Let me stick my head in the massive fire box, which had lights illuminated inside. When I mentioned how bittersweet the locomotive leaving his care must be, a tear welled up in his eye and he got quite emotional. I tried to cheer him up by pointing out how many people would get to see the huge locomotive run, and he nodded in acknowledgment, but his lips were tight, not smiling.
It was an amazing experience for me.
Weird, the room got a bit dusty as I typed this.