Ah, nicely done - I was almost convinced SALSA was used (https://assetstore.unity.com/packages/tools/animation/salsa-lipsync-suite-148442) but underneath, that's kinda what it does anyway, with a bit more bells & whistles.
Yeah, would be great to see a final version of this - but take a few days off first :) You need your voice, it's a great asset!