Use the regular tex-map templates to make a transparency map, and just use black, white, and gray to set up your invisible and transparent areas. There are also programs that will add V2 morphs into V2 clothes. Tailor is one, I also just bought Clothes Converter but I haven't really learned how to use it yet. There are others. There are also magnet sets available to shape V2 clothes. You could take any V2 bustier- such as one from a lingerie set- and as long as you like the shape, you can transform it into armor. Make a custom texture and use spectacular settings and reflection maps to make it look like metal rather than cloth.