Some of the vessels painted up by Wingnut are Old Glory vessels, so you might do a search on his postings.
I think most of his are the larger vessels that are made by them.
Not sure how much converting, or prepping, he had to do to them, but he should be able to provide some feedback.
Their vessels include cannons, which is nice. Those from other manufacturers usually do not, so that is something else to consider, and makes them a lot more affordable.
If you do purchase from OG, I recommend signing up for their Army discount, since the breakpoint on it is $125, and gives you a 40% discount for a year, which is very useful for the more expensive items, or if you plan on ordering a lot of pirate figures.
The latter are available in a wide selection, and are very reasonably priced compared to minis from others.