Hi, the aseprite file has multiple layes so you can direct change each element (also hide the shield layer) if you want too
In case you want a custom sword then you would need to create a new layer on the swod group at the aseprite file or just draw a new sword on the current sword layer (rapier). There's a code that already change equipment (based on the layers and organization of the aseprite file) on the demo unity package (but I'm still working on a tutorial to explain how it works)