As far as pedalling is concerned this is what I do:
In the exposition I only used it in the last two notes of each of the appergio figures, then pedalling it halfway through the bit where the right and left hand play melody in the 6ths (and right hand 5th finger on the G sharp).
After that I kept it on/changing when the RH played a single note melody, but release it entirely when the octaves come in.
Then at the part where both hands play quavers I didn't use the pedal when both hands played only 3-4 notes,but used it when the right hand expanded into the octave chords I put it in again to make it sound louder and more resonant.
Interestingly I almost skip out the pedal entirely in the development, except at the very end of the where there are slurs in the right hand with tremolos in the left.
Recapitulation as per the exposition.
In the coda, the instruction in the Henle book says not to use the pedal when you "roll" (32nd notes at presto, so basically roll) the diminished 7th chords. However, I think this sounds ridiculous so I used it anyway.
Then I pedalled through the rest of the coda when the LH plays the semibreve chord and the right hand plays appergios up and down, and pedaled all the way through the ascending chromatic scale (I actually got a remark by the adjudicator saying not to do it when I pedaled through the descending chromatic scale in the Pathetique 1st, but imagine how exposed your RH would be if the pedal is not there to mud it up a bit?)
If there's anyone's pedalling this can be compared to, it's sort of like a mix between Daniel Barenboim and Murray Perrhia. But at the end of the day, it's about creating the best sound, even though if that means sacrificing what is written on the score.