Yes, probably all in a days work.

If you look at SP 2472 straight-on from the front, you can see that the two cylinder castings (two halves, bolted together in the center) are noticeably different. The story I was told 20 years ago was that one of them was cast in the Sacramento shops in the late 40's following an accident.

I have to say, the Sacramento casting is quite a bit rougher looking than the Baldwin. I can't remember now whether was the right or left that was replaced, or how I knew at the time. Likely there are markings somewhere on each, indicating casting date and place.