Update!

The experiment is underway. I mixed up a batch of "Grandma's Molasses" in the correct ratio of 9 to 1 with hot tap water.
I dropped into the mix a Suntour front derailleur, rear derailleur, a pair of steel pedals, and two cable stops. I'll let them soak for two days and report back with my findings.

Dante

P.S. Here are some before pictures of the derailleurs and the front brake cable stop...