Quote Originally Posted by Crake View Post

Either have a DM that's willing to let you get easy, free, early game wishes, or hit level 17 and cast it yourself.

There's no other option. If your DM doesn't want you to have access to early and easy wishes, there is no "but the rules say I can!" answer, they all involve DM cooperation. Even buiying a wish scroll requires the DM to allow said scroll to be buyable in the first place.
This is why the very most important step in optimization is to find material to use to blackmail your DM.