Have you tried Pirates of the Carribean with Build13 Mod, Build 13 has done what GWX has done for SH3. Includes new characters,weapons,ships,Islands,interface and much more. This mod has been 3 years in the making and it rocks
Here is a link for you if your interested, Go to POTC mod section for info and grab the build from main page
www.piratesahoy.net