Help creating intentionally invisible sim body

Hi! Im not sure if this is where to ask, sorry if its not beforehand, but I'm trying to do something I don't even know if possible, which is a completely invisible sim body. Now, i know that there are already various mods out there such as Simvisible that get the job done by hiding the body parts, but what i'm looking to make is one that hides the entire body but still allows for the sim to wear clothes, which you cant do with other mods like this one because they already take up the slot for the body part that gets hidden, that way i could use this to make very quick simple previous of other cc items without having to render them in blender.

I thought it would be as simple as mixing all the invisible meshes together in blender and then changing the category to something like rings or bracelet so that clothes could be worn on top of it, but there really aren't any meshes on those mods so i wasn't able to frankenstein my way through this. Is this even possible? any form of guidance would really help. Thanks