Pat yourself on the back, Jen!
You DID find the part you need on your own or identified it, anyway. Now you gotta get your hands on one (or two!). Now, I get to welcome you to the world of vintage appliances and the people who love (hate?) them. That means scouring the web for hard to find parts, fixing them and then using them while nursing the headache you got from banging your head on them! Breathe. You'll find it while knowing you have both the sympathetic understanding and support of all here...
RCD