What are your needs? If you want a functional gun you have it with the right shells. If you want to spruce it up a little have it glass bedded, recut the checkering and refinish the wood. The barrel refinish would be the next step up. I would hold off on a complete recase coloring. Pitting could be evaluated by someone who can laser weld. You could make it factory new but you be so upside down into it that you would never get your money out of it. If you are going to keep it in the family then do what you want and don't worry about the cost too much. If you are going to sell it short term to nothing. If you are going to use it and sell it later don't do much more than the stock work and maybe the rust blue of the barrels because you'll never get more than a small fraction of the cost back.
Here is what it always comes down to money. Basic glass bedding, recut checkering and refinish 500-1000 depending on who does the work. Cold rust blue 300-600 again depending on who does it. Complete metal refinish priced by the job and it will need to be seen by the person doing the work to give you a real price.
