Integrate Convai with custom avatar model into unity project

I am looking for someone to help me integrate Convai with a pre-built Reallusion CC4 custom avatar model into my Unity project. This integration is necessary to create more realistic NPC interactions for enhanced user experience and to add a personalized touch. I have a Reallusion CC4 pre-built custom avatar model already but need assistance setting up the AI behavior for the avatar. The features I'm looking for are lip-sync, conversational AI audio and automatic transcription into subtitles, facial expressions when talking about certain things, as well as idle movements like breathing and blinking. I'm also interested in setting up a Chinese version of the same NPC, which I will provide the script for. If you have the skills and experience to help with this project, please apply. Thanks in advance!