My favourite type of garments are those sithgoblin :) I love doing the grimey ones too but in this case the Hoplites would have only the best in linen and their armor would be shiny to intimidate their opponents under the strong Greek sun - this is brilliantly described by Pressfield in his "Gates of Fire", probably one of the best historical novels I've read in a long time. I'll definitely do an "after battle" tunic though with all the signs of wear and tear!