at measure 36, the reason i thought it sounded polonaise-like is because there is an accent on the second beat (similar to polonaise idea).
i will write in the key signatures that cjp gave and re-think these things.
cjp - was looking at the lengths of the sections and wondering why measure 36 wouldn't get the same importance as the return of the A theme in m. 94. each of these 'sections are a page or page and a half.
m 36 and m 138 have distinct similarities in the lh. do analysts normally not call it a different section if it (possible second section) is in the same key as the theme that came before (talking about first A theme and then measure 36 being in the same g minor key).
i tend to think the polonaise idea fits (having second beat accented)
that's a good idea. i didn't know richard wagner had done that with chopin.