distilled or DE-mineralized water is the only way to remove salt. The stock needs to remain submerged long enough to saturate the wood. one the wood is saturated, wrap the stock in a layer of linen or muslin, then but it in a bag with a large quantity of descant to dry out the stock. after a few days, inspect the stock, it should be dry. If the stock has a salt film on the outside, card the salt off and repeat the procedure. If it is clean, refinish the stock.
Hundreds of years from now, it will not matter what my bank account was, the sort of house I lived in, or the kind of car I drove... But the world may be different because I did something so bafflingly crazy that my ruins become a tourist attraction.