Rastus, I've known you at least here, a long time, I will send you a Pm, and I would be glad to operate on this revolver for you, be it known that rimfires take more hammer force than pistol centerfire rounds, So cannot be as light as other revolvers.
I just lost 2 good friends, husband and wife, both shooters and hunters, they were in their 70's, after the husband died the wife of course was alone,but aware, she had spinal cancer and arthritis, her son gave her a model 17 Glock loaded, with a crimson trace laser grip, the barrel was already charged, so all she had to do was shoot, she could not work the slide, but it was already ready to go. My point is, you can prepare the pistol for her, no guarantee's, but the 1st one should do damage. The revolver I'll be glad to talk to you on the side, this is a difficult situation but not unresolvable. The action job would be free.