I am in the process of doing a top end on my rocket. They went 100 hours past TBO. The failure that precipitated the rebuild was a cracked exhaust port on #3. It warped the exhaust flange. Parts and timelines for repair have been brutal. Rocket rebuilt the exhaust. Main Turbo overhauled the turbo. Overhauled nickel cylinders from Sal in Prosper. Controller was overhauled and all the required consumable parts/gaskets from RAM in Waco. Turbo was impossible to get rebuilt for about 4 months and it took an additional 3 for the cylinders. Exhaust valves were hard to come by and intake valves were impossible. I hope the supply chain has eased up for you. We found the cracked cylinder as part of an avionics upgrade so Garmin supply chain issues have further delayed progress. It’s in its third set of servos and has not flown yet. My plane is at a non Mooney repair facility so that also delays things a bit. Their parts guy did not have a good parts supplier so I did the research for him. It saved me thousands in parts by me doing it. If you are in the planning phase I recommend getting ALL the parts ahead of time and schedule with your preferred MSC otherwise otherwise I recommend an investment in aspirin, Miller Lite, and TUMs. Good luck.