The only 'friendly' entrance to gallia is on the opposite end of Sirius from ALG's home space. Yes, you may operate in all four houses doing waste cleanup and shipping, but are you really going to drag your ships through 3 warzones (liberty vs rheinland, bretonia vs kusari, and gallia) trying to transport goods that really arent going to make you any more profit than routes that are much safer for your corporation?
Further, you cant go past council space (i.e. languedoc) - the GRN are shooting any Sirius craft on Sight with the exception of Junkers.
The council might be willing to deal with you, but you probably should not mention the junkers, our two groups dont exactly get along. We work for them occasionally but most of the council and gallic unlawfuls view junkers as royalists in gallia.