1 - But he'd be proud of you for securing all the treasure, since he's a thief. I couldn't really think of a name.3 - You'd just have to kill Rath last, then.
5 - If you were to rescue the NPC's, it could be done.
An as Xbox gamer, I love achievements that present great challenges. When you have something that you can't always complete on your first attempt, you get people talking about your game. Exchanging strategies and the like on how to do it. Then, when you finally get it done, you really feel a sense of satisfaction.