Do you enjoy projects with hands on things? If so there are re-stocking projects to be had or a MZ kit from Jim Chambers or (easier) Jim Kibler. You can even rust blue a beater pretty easily at home as a project. Another option with your itch for a single shot would be to get a Ruger, Handi, or Contender and work up cast bullet loads that are cheap for plinking and still effective for deer, like a .30-30 or .25-35.
