[@Keksalot] give me a bit more in the personality section. It's hard to place him in a house or with a wand with such a short description. Some examples of behavior would be good.

As Roze helpfully points out, our students are a bit older. Unless you [i]want[/i] to play a much younger character. I wouldn't object, but it might make it difficult for him to get involved with some of the others. 

Oh, and he can't take his servants to Hogwarts, but they can certainly stay at an inn in Hogsmeade if he needs them close by.