It depends on how good it looks, i would have to see it to give a fair price, just a normal looking one $5, a good looking one about $10, OR i will be willing to trade something that i havent found online ANYWHERE. As of right now i found a way to convert all the textures in Half Life 2 into .BMP 512x512 even the character skins, walls, enimies, at misc items. I would be willing to trade a zip folder with most of the textures from hl2 for a good looking zombie skin. I am still in the process of converting them all to .bmp