No matter where you build your PoB, it will always be in someone's ZoI. NPC stations will not help you to defend your PoB. Weapon platforms can be disabled or avoided completely and, most likely, NPC patrols will stop to spawn as soon as more than ~60 players are online. I wouldn't even build one in house space with inactive law enforcement. Else you pay a registration fee, maybe even divulge the location of your base on forum and invite the unlawful side to extort you again.
At any case i would avoid PoBs because the current concept is just terrible. As owner of a base you can loose everything, while the attackers have nothing to loose. If that's not an option, then join an active faction with access to a PoB and help its members to maintain it. In that case you don't need to start from scratch.
