Hi Musicdiscussion,
take a look over at the Neue Mozart-Ausgabe website:
http://dme.mozarteum.at/DME/nma/start.php?l=2
Under Series V, Piano concertos volume 3, you’ll find
1st movement: pages 32 and 33 (as numbered on the page of the score) have 2 cadenzas, one rather short, one longer;
2nd movement: page 42, again 2 versions of the Eingang, and then 2 cadenzas proper on page 46;
3rd movement: page 63, again 2 cadenzas, plus an elaboration of one figure slightly later on page 65.
In fact if you download the PDF of the score it will probably be of assistance to help going through the whole piece. The link at the top of a score page saying “Table of Contents” has a list of links to download entire works or movements.
Cheers, Philip