I'm looking for the earliest version that has a lot of bug fixes so I can incorporate them into the "clean" stock game for now, but I'd like to see how your version plays.
I chime in with what I know about.
GOF 1.2 links:
Gentelmen of Fortune! v1.2 Full Release file
GoF! 1.2 Full Release Patch file - Age of Pirates 2: Gentlemen of Fortune mod for Age of Pirates II: City of Abandoned Ships
I also have a patch strictly for Vanilla COAS that I've worked on. Although it contains a few slight changes that were borrowed from GOF 1.2, like additional display information in the shipyard (cannons on board), or in the store (how many days rum/food), it is very close to stock, mostly fixes bugs I encountered. For one example instance, a case when the PC has a bounty and manages to converse with the mayor of an enemy town, there is a possibility to either pay for status improvement or arrested for execution. The problem arises when execution is determined, yet the game calls a missing function for execution that that was never developed in the COAS released version, thus freezing the game. I removed that function call and merely cause a fight to ensue. There is also some text cleanup, name inconsistencies fixed, etc. But it is overwhelmingly left stock.
You can get it here:
https://mega.nz/#F!WtMDgRxK!hbeUg86kGLlQAqvWRNwTqg
AOP2.Patch.zip = patch files for vanilla COAS with fixes
GOF1.2Patch.zip = patch files for GOF 1.2 with fixes
I also fixed things in GOF 1.2 that can be folded in with the GOF1.2Patch.zip after the original GOF 1.2 full release and patch from the moddb links above.