Sorry, he says he can't help. Have your tried Dixie Gun Works my last catalog[ue] lists genuine Enfield parts? I won't stop trying - tomorrow I'll give Henry Krank up in Yorkshire a call. I've had a thought that since the Parker-Hale repros were made from the real Enfield patterns that a spare hammer made by them might be useful for you. At least you wouldn't have to finish it - the square hole is there already AND right-sized, too.