exactly - and what is few months here or there in the life history of a B-52.....
Very true, years ago, very many years ago, I read an article in the 'Tinker Takeoff' (yes Tinker AFB has its own newspaper) about a B-52 that had just come out of a major overhaul/upgrade and the only piece of original equipment/part in the aircraft was the co-pilot's left rudder peddle.
Everything else, including the aircraft skin had been replaced over the years since this particular B-52 rolled off the Boeing assembly line.