Guys I am really thankful for your input and sharing your experience. The engine in question has new (modern one piece) valves replaced by me in 2019. At that time I found one that was cracked and discovered they were the original two piece valves and replaced them all. At the time I chose not to replace the springs as they all looked good. The engine, as best I can tell based on the odometer and the history that has come with the car, has about 17k miles on it. The pistons are original and I suspect the rings are too, though they (rings) may have been replaced in the 60's when the car was last restored.
Before tearing into this engine, this was a very smooth running engine. I hope that when I am done she'll be ready for some more tours.
I think maybe since I have the valves all free I'll do some light lapping on them as I hope not to disturb them again for a while. I also will do a complete compression check before I am done.