The best drummers I've ever seen have minimal kits.
If not the best, certainly the smartest.
When Ringo was a Beatle, he had only one snare, two toms, a bass a high-hat cymbal and two, I believe the term is crash cymbals. Somebody will correct me if I’m wrong. Ringo made it work. I think that’s his current kit even today.
Sorry to hear about Phil. Ringo had surgery on his right shoulder two or three years ago. It was related to his job. There must be other issues at play with Phil. I wish him well. Pain, whatever the cause, is nothing anyone wants to have to deal with.