I'm finding more and more parts on amazon.com. Now for your car it may be too rare so you may be stuck with car recyclers AKA junk yards. I know these folk are now on a big sharing system where they can ask all the yards if they have a Waldo Shifter.
In short, time to ask a junk yard.
Living on a small island east of Florida and buying a replacement car part through the dealer is so expensive. Is there a way to order them from a reputable site online and save a few dollars?