You will be going AD, this only works if you know how to use your skill shots and have a good support, a bad support will only lead to you feeding. Champions that go well with you are Rammus, Taric or Blitzcrank.

You deal a lot of damage when you go AP but AD is more efficient when you have a mostly AP team, this guide is if you want something different or if you are forced into being AD, either way it works!

Not a problem, sometimes you may want a lucky pick as a 5 gp item, this will allow early game gold and will also give you some more damage with your abilities.