Yeah I will eventually get around to releasing the aliens as standalone modders resource packs (including replacing my own Kel Dor with the TOR version).
The aliens are all full body models. They'd all need custom bodies anyway, because of the hand meshes, and the Nautolans need body weights for their lekku. The humans are added appearance rows, but regular part bodies using vanilla player heads (just like the vanilla Jedi rows). They do have custom bodies for the bare hand skin colours (using my own vanilla hand meshes remapped to TOR hand texture UVs). I'm not in any rush to do a compatibility patch right at the moment. Which ones are you even talking about? The HapSlash JKO/JKA ones?