I love Google.
Found a source for not only the itty-bitty needles, but also the spool pin and some little felt rounds to go under the spool. Got 3 needles, the rounds and the pin for less than $10 (including the shipping). They even had some new tension disks. I'll wait and see how she runs with the new needle and pin before I get the disks. I may be able to just remove them and sand off the rust and they'd be ok. We'll see.