You can find my old belly mod here: Belly Mod release(current as of 7/1/2017)(combat and office patch)
But it’s abandon for various reasons outlined in other posts. Its not compatible with my current project.
As for the total conversion mod, v1-2-0 is not available yet., v1-1-0 is available here: Total Conversion Belly Mod v1-1-0 (currently out!) - #2 by Juxtaterrestrial