As far as I know, the only place you can get them is from Joe Musso, or someone who has them and would do a copy for you. I made a promise and can't. Google Joe's name up, and see if you can find a contact for him. However, the drawings above should get you by, if the drawing is layed out accurately enough to take measurements from. It looks right. By the way, the grip wood is not known for sure. It may or may not be oak. It was never tested. I don't mind giving you any unknown measurements, but I can't give you a copy of the drawing by Joe.