There are no stainless steel Model 10s. There are nickel Model 10s.
There are stainless steel Model 64s that look like Model 10s.
Being shot five times means little. Are we talking five rounds, five cylinders full, or a thousand rounds at a time for five times? Does the cylinder have endshake? How is the timing? What kind of wear is present, and how much?
Assuming good mechanical condition and 95% finish:
If you have a Model 64, your revolver is worth about $250.
If you have an original nickel finish Model 10, your gun is worth about $250.
If you have a non-original nickel finish Model 10 (or a brushed chrome finish), your gun is worth about $125-150.
If you have a 2 or 3 inch barrel, you may add $50 to each of these figures, except the last. A pinned barrel will add a bit to the desirability, but not really to the price. yet.
Here is a nickel Model 10.