The Sixth Retina

I said recently that I have five Kodak Retinas, forgetting my Retina Reflex. I haven't shot the camera in over ten years because of a cloudy view due to a deteriorated prism. Everything else on the camera works pretty well, so I may try to do something about replacing the prism.
I managed to muck up the shutter in the process of cleaning the camera recently so that the aperture would not close down properly. I did not discover that until I had shot a roll of Fuji 200. The aperture malfunction caused some over- exposure and some depth of focus issues. I think I've got the shutter working properly now, and I have my eye on a couple '80s Minoltas on ebay which might work as prism donors. Also had some double exposures toward the end of the roll; not sure what that is about.