I am posting the four ships I bought - through Tabletop Terrain using licensed Printable Scenery models.
Each ship image shows all the parts that come with the models, at least I hope so (actually, galleon takes a few photos to show)! Have yet to start assembly but these photos should help with the sorting out and studying photos of the finished models to figure out what goes where.
First the sloop:

It comes with a one piece hull and two (?) crows nest for the one mast. Note that none of the ships come with the masts, bowsprits, or yard arms. Recommend to use wooden dowels but Captain Blood used plastic rod which I might use though I have some masts from a plastic ship I cannibalized for parts for a pulp ship or three I'm building in 15 mm. On the top of the parts are two pieces for guns with open ports and two for the same but with closed ports. At the bottom of the parts are four swivel guns.
I should note I have a veritable plethora of extra guns, including some swivels, I can use beyond the limited items that come with the models.
Next up is the Brig:

Again a single piece hull. On all the models the anchors have only half of a cross piece which I think means they are to be glued into the chain holes with the other half to be 'understood' to be there(?). Perhaps the weakest part of the models in my opinion.
And then the Frigate:

This comes with the hull in three pieces. Not sure why this model has very different pieces for the masts - those with the many holes, perhaps because it is MK2 so perhaps a redesign. Again, the open or closed gun ports. I plan to have most or all of mine with gun ports open and ready to bare on an opponent which means I will have a couple of dozen closed port bits I can use somehow, maybe make small boxes with lids since they have a wooden board look to them.
And, last, the Galleon:

No, that hull is not in one piece!
It's in six pieces:

And all those so many parts!

At least 48 of the parts are the open/closed gun ports so not as daunting as it seems - though daunting it indeed is in some ways. What will make it less daunting is assembling the pieces into mast/yardarm sub-kits and focus on one set at a time.
I think once glued together the seams on the multi-part hulls are going to be somewhat visible so I will see what I can do to reduce that effect without going to too much extra effort.
A shot of all four of the hulls - and, no, not glued together yet.

This last shot shows an Old Glory Shipyard 15 mm ship, in yellow resin, and a Thoroughbred sloop. I have three OG ships, BW6 and BW 7, and five Thoroughbred models. I also plan to retain three of my smaller wooden ships as merchant vessels with little to no armaments. That adds up to 17 ships. Lots of boats with crews to toss into the mix as well. Except for the boat crews, I have considerably more than enough painted figures to not only man all of those ships but to man a fort, provide 'marines' (land forces), and populate a town or two with civilians.

Hope these photos prove useful to others. Don't be intimidated by the many parts; I'm sure the end results will be worth that little bit of extra effort up front. Ships can be purchased pretty much in any size you wish - just need to work with the supplier in the event the size you want is not listed already. Here is a link to Tabletop Terrain's ship pages (lot of non-sailing ships on those pages), USA based, but I expect others have access or, for those with their own printers, you can buy a license from Printable Scenery:
https://tabletopterrain.com/search?options%5Bprefix%5D=last&q=ships&filter.p.product_type=