How can I write "The Cask of Amontillado" from Fortunato's point of view?

To maintain the dramatic and psychological interest, I would be inclined to adjust the
timing. Most of the story is spent in the journey through Montresor's vaults, which is not
particularly interesting from Fortunato's point of view, since he is oblivious to the ironies
contained in the references to the masons and Montresor's coat of arms. As far as he is
concerned, they are simply walking through a damp vault to reach a barrel of sherry. I would
therefore spend less time on this part of the story and more on Fortunato's reflections and
regrets after his imprisonment.

One interesting approach might be to open
the story with Fortunato already immured in the vault and awaiting death. He could then reflect
on what brought him there and when he first realized Montresor's plan (presumably after the last
possibility of escape). Montresor refers to the "thousand injuries" Fortunato had
inflicted on him, as well as at least one insult. What were these? Clearly, Fortunato did not
imagine they...