Ask your DM. I wouldn't allow it for multiple reasons. Primarily because you want a permanent power increase for a one time spell and wish just isn't that powerful. I personally would enforce all of the penalties a vampire has, you have to drink blood to survive. In addition, you follow the normal transference to the undead - you can no longer be healed as an example. For that matter it's an open question on whether you even remember your past life as a monk much less retain your monk abilities because you've so radically changed.
But maybe your DM will have fun with it. Asking people here isn't going to give you any answers that matter at your table.