There is no option to save an outfit or a ship decal with sails and cannons matching already.
I have a sea captain outfit I put together with a clean looking pirate and nice hat and peg leg. But then I also like wearing my castaway look with a broken bottle on my peg and a ripped shirt and poker card over my eye.
Switching from these two outfits is time consuming and I’d like to be able to change my appearance a little quicker for sake of playing with my long-time friends. And while this feature may be implemented in other games that have statistical variants to weapons, this game does not have any leg over on any fishin pole or any other sword. Based solely on the customization of your ship and your pirate I believe there should without a doubt be an option to save loudout settings to your vanity/equipment/clothing/ship.