The Core cannons for the forward armaments are manufactured for this commission, but you should... ideally... consider a backup plan incase they attempt to hunt you. Though it would be humoring to see them try, half of the Sector seems to have a black market replication of their capital turrets. You will have to figure out what turrets you also desire for this ship.
Whether you keep it on the vessel or not remains at your discretion with your own credits.