Who would buy a nonfiction book of the lives of non-celebrities who had their greatest achievements because of privilege and entitlement? I hated Wild, but that has more of a struggle and journey than the Gilmore story. These type of books only sell if the person is famous like an actor, established author (Stephen King's On Writing), blogger, or youtuber.
A fictional book based on it would make more sense. Heck, make it a book series. Or here's a thought, do it as a book and sell the spec rights to Doyle to make it a TV show or movie. Make it full meta.
And honestly, why the hell is