Beachbumbob:  If your magazine-door ('gate') functions properly, it's a good sign the follower spring is good.
   J. DeChristopher,   (You need to Login, (215)297-8103, lists 1894-96 and 1896 side-plates, at $85 and $95, respectively.  Also, there are two gentlemen, listed in the KCA Classifieds, who sell parts.