For those who get annoyed with the raids, here's a neat little trick I just thought of (so not tested yet).
Build two bases. One in the south (could be at the original location for instance) and another someplace else that you'll make your main base. Keep a small team in the south, but with some heavy hitters (werewolf, androids, giants, stuff like that). Then have one of them wear the decoy charm.
Here's what will happen: when a raid occurs, they'll be drawn by the decoy charm to the one wearing it. Since that NPC is in the south, the raiders will all be low level. Since your defense team will all be bad ass, they'll slaughter the enemy before they can do any real damage. Problem solved
And when you want to fight to up your XP, just take the charm off that NPC, put it on you, and teleport to another part of the map where the fight will be a bit more challenging, then use the /ass command to start a raid.