Welcome aboard Asorola

Non-revving Hawaii is always iffy, (see the 'non-rev black hole' thread ) I wouldn't risk a honeymoon trip.
You could look into non-revving out here to the west coast and getting confirmed tickets to/from Hawaii, but because it is June and you're FedEx with a lower priority, I would leave the usual non-rev travel stress for a future trip.
Congratulations

Keep'em flying