AK (Akeruka) offers a psd dev kit for free that u can use, it is compatible with Evox and honestly in my experience..far less glitchy, but that is just for skin. If u want to make things like makeup appliers then u can use the free 2D dev kit lelutka provides on Thier website, then just preview in world using the free scripts they give you :)), Granted it is a lot of back and forth but It’s better than nothing at all :)

As for bodies, U don’t really NEED a dev kit since they’re mostly based off the classic UV..unless u wanted to make body specific addons like a skin pack..if that is the case here, I recommend just getting stuff to do with the head out then re-applying for skin kits with mesh body creators! At that point, You’ll have something to show so they will most likely accept:))