A GGUF conversion of this great work https://civitai.com/models/1824594/rapid-wan-22-all-in-one?modelVersionId=2064786
simple JSON workflow (you need only gguf loader custom node): https://civitai.com/api/download/models/2099499?type=Training%20Data
umt5xxl and vae excluded. you can use separated ones from wan 2.1