Hey gunner, get your son to re-build it. Where the high wear area's are, get him to hardface it with hardfacing rods. It doesn't have to be all smooth looking afterwards. That pin the foot swivels on can be easily delt with. If it is the shaft pin itself that is badly worn, then rebuilding and machineing would be OK, but total removale and a new large shaft driven and welded in would be better. That isn't that hard to do, as the shaft is just part of the fluke casting. It can be cut off flush and re-bored. The foot part can have a bush fitted. Then re galv the whole thing. It should be much cheaper than a new anchor
, especially if the Son can do it in his spare time.
Orrrr, just keep it as a second anchor
and get a new one as your main.