Then you wouldn't have to go to a Kusari battleship to buy one. That would defeat the purpose of having restricted places to buy it.
Funny thing about their Kyoto base is that they don't sell any Blood Dragon Dragons!!!
Anyone notice how offensive-based the Outcasts are and defensive-based the Corsairs are? Corsair ships have tons of extra armor, but Outcast ships have the 360 degree turret, and more heavily damaging, more accurate weapons.