Erin,
I will echo what Andy sez, and suggest you look for something else to rebuild. A good starting point is this set of Gipiemme that has adorned my work bench for about a year. These are complete and will need a good cleaning and repack, but they have all the hallmarks of a good pedal. Lemme Know, Smiles, MH
The cages are steel and could use a good coat of black paint, and the spindles are I think in fine shape. It appears that one has been overhauled recently and the other needs some love. But the price of admission is the cost of postage, probably ten bucks.