Well, Brigands run the primary risk of not having enough traders to pirate in Gallia. While Corporations are working to get people moving into Gallia, especially ALG and the kusari corps...it's still not a very friendly place for piracy.
I'd suggest basing your start in the Taus. Brigands had things going with the Outcast, so I'd pick up from that. Pirate IMG and the many denizens of Tau-23 and Tau-31 a great deal, and prowl Tau-31 looking for people passing through. Maybe interdict the occasional GRN shipment.
