New guy here. I am by far not an expert on your physical limitations. However it seems as though the less buttons and doodads you have to manipulate the better off you'll be. And having to rack the slide on an auto might be more of a problem than you realize. My humble recommendation would be Taurus revolver in 9mm with a couple of reloads in moon clips. The recoil is about that of 38 +p. And with full moon clips it will be much easier to reload. Limp wristing is'nt an issue. Good luck in your search.