M_Boats: Centerboard

I'm sure this question has been addressed exhaustively in the mailing list archives, but I've never had much success accessing them. Is it possible to galvanize the older M17's centerboard? If so, has anyone out there done so? Would galvanization be preferable to epoxy painting? I imagine epoxy painting and filling would be cheaper and would make faering easier. Would galvanization be prohibitively expensive? Would galvanization give complete corrosion resistance? Thanks!