High Luk Mage robes don't go for much. Some people might be able to wear those with a Zakum Helmet and Horntail Necklace, but at that point, more Int isn't really all that useful. You'd be lucky if someone were to take your off your hands for 30-40m.
I'm going to assume you mean the other one. That one falls in the same category, but you could get away with selling it for 150-200m.
