Good morning Rick
It will be interesting to see the 'restoration' photos. Did you mention to the surgeon that your hobby bears a distinct similarity to his occupation? This basically comes down to repairing/replacing old/damaged or worn out parts so as they can continue to fulfil their original purpose. Also we were carrying out transplants many years before it became popular with humans. They are a little slow off the mark but we won't hold it against them.
Cheers
Dave