Am readying a Rigby (Webley 1902 patent) falling block that was rebarreled in hand-detachable 300 and 375 flanged magnum for sale. The action has some pitting and needs color case hardening.

Who might do this work and please give a notional estimate of costs of polishing and case hardening? Might have to touch up the engraving, too.

Regards, Tim