Well I've finnished my looking about and I am actually quite pleased, it all fits conveniently.
Because of the flow of prices on commodities GMG has three sources of labour each selling three different commodities (here I am talking about human cargo as commodities heheh) and it works out like this.
Liberty to GMG : Slaves
Kusari to GMG: Prisoners
Zoners to GMG: Refugees
This can also have a very conveniant RP to it as well, I'll throw the best example that comes to my mind.
Rheinland Slaves from LPI Sugarland: They prisoners to Liberty but we all know the past between GMG and Rheinland, GMG is also full of infocard that detail "Grudges" against various factions including RM. Slaves may be the appropriate thing as they may most likely be treated as such on arrival.
Bretonian Prisoners from Kusari BS near the war front: The Bretonian Prisoners are prisoners through and through, and as said earlier they are on an Imperial program for their warcrimes as viewed by Imperial Kusari, they endentured to our mines to work their dues and "rehabilitate".
Refugees from Zoner Base in Deep Omegas (41): These refugees seem most likely hungry Corsairs looking for a chance to a better life. GMG may very well be offering that opportunity, but through hard labour. Let's not forget that they cut us off the artifact deal so these particular Corsair Refugees are going to have to work hard to get accepted in the Lawful side of life.
Opinions? Does it seem like a viable RP to explain the current routes for GMG's operations?