I assume this is Op.23?
You might want to look at detailed (and different, but still crowded) fingerings by Mikuli (the score can be found on IMSLP, look for Kistner Pianoforte-Werke edition, approx. 1879-1890).
I do not know how much of fingerings provided there were by Chopin, but Mikuli was his pupil, so he might know how to play in Chopin style.