Hopkins & Allen Falling Block Rifle

Would any of you Gentlemen know of someone who may have parts for H&A Falling Block Rifle 1888-90? I can not find action and butt stock for .32WCF. Also someone who can copy a butt stock for H&A Falling Block .22 cal. S.S. 1888. Surely hope you can help me and thank you.

Dr. J. Curtis Lane