Good job, cometear. You are making progress with this one! I think faulty_damper would be more happy if you played the appoggiatura ON the beat rather than BEFORE the beat, regardless of the length being either that of an 8th or a 16th note. It will sound a bit better ON the beat than before. Here are two fascinating performances that give two very different perspectives on the work: One of the performances is somewhat 'slow' and the other is somewhat 'fast', but both manage to convey a remarkable level of musical intensity-something which I would like to hear more of in your recording, regardless of how you decide to convey it.
Good to know that you enjoy it too It's by far my favourite Mozart sonata. I have a weird feeling that playing this has changed my musical development immensely too.