The rod in the center of the cylinder is the ejector. With the cylinder open, push it in and it will eject all of the cases at once.
I have a 58 that I carried for years as a LEO. It shows a lot of holster wear and ain't purty no more, but I wouldn't change a thing.
I wouldn't have it refinished as the gun and I earned our dents and scars and wear them proudly.
Clean the gun well and see how it cleans up. You may be surprised at the results. If they don't satisfy you, then you could have it re-blued by S&W and cause the least decrease in value.
.41 mag is a pleasant and versatile gun if you reload.
You can load it down to a pleasant plinking level or take it up to barn burning capabilities. It sounds like you have all equipment and supplies needed to do so.
I suspect by learning to reload, you would be exploring a path that your Dad enjoyed in keeping that old Smith running.
Give it a try.
I was in a couple of gun squabbles inside a building and outside. I didn't hear the guns at the time, but now I listen to the cicada's singing 24 hours a day.
Do not shoot any gun without hearing protection if you can prevent it.