There is no Mages guild in KVatch but Bravil all you do is go into the place and speak to the argonian. This one is hard because you can never find the idiot after one time. Oh and you are going to need about 500-1000 gold I think. I put in a range because I am not sure but it is closer to 500.
Murphy's Law: It is impossible to make anything foolproof because fools are so ingenious.