Sorry to hear of your scheduling problems - I was relatively lucky 9 years ago when I had my aortic valve and aortic root replaced at age 68 - everything went as scheduled and so far so good - the lifetime warranty is still in effect. On to more serious matters what kind of motorcycling do you do? My fleet consists of a 2003 Suzuki DRZ400, a 2023 Suzuki V-Strom 650, and a 1968 Triumph TR6C, all purchased new. The Triumph is undergoing restoration at the moment but the other two get ridden regularly, despite recommendations from a cardiologist and a few nurses that I quit riding - guess they don't ride. My niece had similar surgery while in her early 30's and was advised to quit skiing and horseback riding - she didn't. Mental health is just as important as minimizing risk and activities like the ones I've mentioned contribute to that mental health. Hope you get lucky soon and get the surgery done, then you can heal up while winter continues and get on with the search for your new motorcycle in the Spring.