The New Service appears to have a correct barrel, but an altered front sight. Unless one is a very picky collector this doesn't matter, and probably makes it a better shooter.
The .32-20 has replacement (genuine stag) stocks that are probably worth more then the original ones, at least in the United States where the material they are made from can no longer be imported from India. If you want exact duplicates of what came on it, post a serial number using xx for the last numbers and I'll be able to describe what you should get.
The .22 has Colt target stocks, which may or may not have been on the revolver when it left the factory. Usually they didn't but there is no reason they couldn't. Again, post a serial and some more research can go forward.
Any way you look at it, you have a fine collection.
Just noticed that the .22 was made in 1940. If so be aware that the stocks are post-war usually found on target revolvers with adjustable sights.