I have added the “gloria-gloria” chorus after the “Laudate te” and the “Domine fili unigenite” sections. Is this too much repetition? Is the piece now too/unnecessarily long? I’m not sure, but I do like these outburst of pure joy… So I’m leaving them in at the moment.
I have decided against extending the Agnus Dei beyond its original scope. It just felt too long and the “mood” of the music did not seem to me to be a good fit with the words. So… I will be leaving this at just the two verses and chorus (plus the introduction).