Ok, there's 61 keys, and 8 bytes with 8 bits each for 64 possible keys. So the pedals must be in the high bits of bytes 5, 6 or 7.

Testing it out, it looks like the sustain pedal is byte 6, bit 7 0x80 of address C0F6 (for slot 7). I don't think it worries about the pedals being velocity sensitive, just on or off.

The portamento pedal I couldn't hear the difference (it's supposed to sweep the pitch from one note to the other) but it must be the high bit of either byte 5 or 7.