Finally got around to it. Here's some photos after a fresh coat of Turtlewax. Since my original post, I swapped out the freewheel with a Shimano that goes up to 28 (original was 24). Not sure if going up hills a little easier is worth not having the crisp, clean rear syncopation, given that the Shimano's gear spacing doesn't match the chain width or, in some spots, the Suntour index positions. I may put the original freewheel back on.