This gives me some doubts:
“Have I read The Great Gatsby?” Combs said to a London newspaper in 2001. “I am the Great Gatsby.”
Would someone who’d read The Great Gatsby say something like that? Perhaps more interesting, would acknowledging one’s Gatsby-esque status even be consistent with being Gatsby? I think it’s sort of integral to Gatsby’s character that he lacks this particular insight about his role in the scheme of things.