I doubt you'll have much luck. Even back in the day when they were still being made and sold there wasn't much aftermarket interest in them. There's even less today.
You might try one of the big online parts houses. They might have something.
For God so loved the world, that He gave His only begotten Son, that whoever believes in Him should not perish, but have everlasting life.
John 3:16 (NKJV)