You need photoshop or something similar for the next step. The template is 180 degrees rotated, so you will want to turn it first. Load the skin map of your choice and the template in a new layer. Tweak the size of the template, so it fits your map. To cover the whole template area with skin, i used the patch tool. Crop the area of your map that lies within the area of the template, rotate 180 degrees and save as a new map for the prop.