You might find it worthwhile to do as another poster suggested and reach out to Robar. They have a solid reputation, and can do the mechanical work and some kind of finish that will at least halt further deterioration. Sell the grips and you might have a good start on the work.

Alternative - reach out to member BMCM, who has started doing gunsmithing. I had him RB my 4" M66 - great work, and too cheap for his own good.

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NHI, 10-8.