Thanks to all for the suggestions to date. I have never dealt with Galazan, but I thought crossed my mind. I can ask my gunsmith who will be assemblying this "project Parker gun" to check with them- The ad states a 14.5" LOP-

PS- June 8th- My gunsmith found a used 12 Parker pg buttstock-saw it Friday-looks like anear perfect fit- good dims, so I am all set- maybe will have it assembled by late summer, I never ever try to rush a craftsman-and Brad Bachelder (a PGCA member) is that, in spades!!