Theres an exporter for milkshape that will write files to the format for freelancers hitboxes. I havnt tested it. It comes from these peeps http://eoa.seriouszone.com/anton.php#crctool they also got a ship resizer, i think it also will resize and keep the hardpoints in their appropriate area, again ive not tested it.
I think the Outcasts and Corsairs both need a full lineup of ships. They are in fact 'Houses' just like the lawful ones and should be treated as such.
So no, the Corsairs do not have enough ships, neither do the Outcasts.
Hessians are a pirate organization in Reinland space, they have no house, no civilian population, no government like the 'sairs and 'casts therefor do not warrant a full fleet of ship types. That is part of the reason they fly the Sabre, which is designed by the Outcasts.