Good stuff Steve. I've always wondered when some firearm knowledgable machine shop will accept electronic files so that all the gunsmith or hobbyist would need is the scanner to have a part roughed out and dropped in the mail. I'd think someone could easily modify a scan to add back worn or broken surfaces before the new piece is machined. I've also wondered if a 3D printing or plastic model could be invested to make a casting if that was a preferred route. I'd think a program could add predicatble compensation for shrinkage. I'll watch for your updates.