Im in need of a side plate for a box of parts handgun that is missing some of the parts . It’s a S&W model 67 the stainless version of the 15 a later version , I believe it’s a 67-4 the less desirable one’s with the 2 part barrel or a sleeve over the barrel . My question is can I use another K frame side plate with a little fitting ? So if I find someone who has one off of a M 64 could it be used . Did they change over the years ???