The leggings are being sold at the Treasure Trove for 28mill right now. The vendor's name is "ML Items," and it's located at Tomas' house.

Anyway, with that being said, I sold the full suit about a month and a half ago for 70mill. It took me nearly 3 months to sell it at that price. To be honest, the Assassin set is considered the best set, but even so I still thought it kinda sucked. Of course, I'm looking at it from a pvp perspective. It is near impossible to get to all 70's wearing this suit, and still be able to kill anyone. It's nice to say you have the full suit, but other than that I dont see a point in wearing it. You are much better off wearing a suit you've made yourself.

All the ML sets are like this unfortunately. I guess they were afraid of making them too uber, and in reality made them actually weaker than the barbed armor equivalent. The Marksmen set and Juggernaut set are also pretty weak in comparison to what you could get with the gold you'd spend on buying these sets. 30mill is what people try to get for the Marksmen and Juggernaut set. You can take that 30 and buy much better crafted items instead.