Sorry about the port.
Years ago when I was doing the cancer dance I had them place it in my left shoulder for exactly this reason. I was big into BPCR at the time. As it turned out, I lost so much weight that I could no longer shoot without pain, so I sold all my iron.
Since placing the port on the left is really not an option now, I agree to ask your MD about your plans and verify if your desire for a 22 will interfere with your port.