Joe, I have an almost identical rifle, but not a rusty relic, that my wife gave me as a college graduation present back in 1968. So your rifle is very special to me. That said, yours is a single purpose target rifle. If you like cast bullets and messing about with a 32-40, it is pretty neat. It's a little heavy for schuetzen, but only a little.
There is original wood available and there are lots of choices if you decide to go for a custom stock. My rifle came with a straight grip stock, no fancy wood, and a nickle-plated Swiss buttplate. But mainly that stays in the gun safe. For the range, my rifle has a butt stock for a Winder Musket. They fit right with no additional work needed. It is easier to use on the bench and the nicks & dings are not nearly so much of an issue.
I don't think there is any particular reason to go to great pains to get original sights. Back in the day, serious shooters changed sights around until they found whatever suited them. My rifle had no sights at all, not even dovetails. It was originally set up for a long telescope, maybe a Malcolm. Now it has a 12-X Unertl.
I am now shooting a Farrow with an original Winchester front sight and Axtel inserts. Farrow used Winchester front sights and the front sight on mine is original. Personally, I would not make any effort to get another. There are better sights available.
