I stayed up way too late and burned through 2 free accounts to get this best you're getting for now and best I can get for the night. I'm happy with the expression of the last bit at least.
A tip that may help some of you: I discovered that putting ":)" and ":(" in the prompt actually makes it express that emotion, and using katakana to spell words and other characters which are pronounced longer saves characters and can help achieve the effect you want.
https://a.pomf.cat/afmzin.mp3 