I guess anything's possible. In my LaGG-3 research, I'm finding tons of photos of planes where the canopies have been removed (presumably because the visibility through the coke bottle glass was so poor), half of the gear doors are missing, etc. And these are grainy, crappy pics. One can only imagine how ghetto those planes looked in person.
Based on what little I know of Soviet practices, I wouldn't imagine they would paint the tracks, or really worry about protecting them from corrosion. Theirs was definitely a quantity over quality operation, especially in '41.