Ahoy, Sev, and welcome aboard! Pull up a keg and have a seat, have a couple on us!

:
Are you referring to the MOW that has red/orange trim and a light tan body, or the black one with the red and blue trim?
The latter is the governor's MOW and I'm not sure you can actually buy one - when you buy a ship it's random which skin you will end up with, anyhow. You might try buying at either the Redmond or Oxbay shipyards, but I don't know... I DO know that I am sailing the governor's MOW because I TOOK HER at the end of the main quest (which I did over again after installing the build). She's a real beauty of a ship!
I think being able to BUY a MOW is dependent upon your sailing skill, and early in the game you are just not built up enough to do it - but you can still "take" one as a prize if you and your crew are good enough...
There's a way to up the encounters of a MOW, just go into the POTC program file and open Programs/Encounter/Encounters.c file - open it with a text editor such as NOTEPAD (not WordPad or Word). Find these lines at the bottom and follow the instructions in green.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include "encountersencounters.h"
#include "encountersencounters_map.c"
#include "encountersencounters_quest.c"
#define MAX_MAP_ENCOUNTERS 16
object MapEncounters[MAX_MAP_ENCOUNTERS];
extern void InitEncounters();
void EncountersInit()
{
if(LoadSegment("EncountersEncounters_init.c"))
{
InitEncounters();
UnloadSegment("EncountersEncounters_init.c");
}
ReleaseMapEncounters();
}
int FindWarEncounter()
{
int iTypes[100];
//Change [100] to [25]
int iNumTypes = 0;
ref rCharacter = GetMainCharacter();
int iCharacterRank = sti(rCharacter.rank);
if(GetShipCap()) { if((`8-GetCharacterShipClass`(rCharacter)) * 2 < iCharacterRank) { iCharacterRank = (`8-GetCharacterShipClass`(rCharacter)) * 2; } } // NK
int iChance = rand(100);
//Change (100) to (25)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
That should help your encounter rate.
I think we here at PA! have been trying to collect up some savegames, but I don't think we have any up yet - hopefully someone here can help you (I can't, most of my savegames are from a far distant point from the alcove section of the main quest) with that if this is not working right for you.