One just sold for 75m in another thread, not sigil but I've heard that color is an option with regular dye tubs. If the original color of the tunic isn't an option on dye tubs then original color would likely be worth more, but i believe that color is an option. I would say 75m is low end. I recently sold one for 125m on my vendor in the last couple weeks, but it sat for like a month before selling