I have to bump this up from the 3rd page, I have been using this and I love it.

And yes you can send transporters if it has full resources.

172K exp every level 5 I hit, it's just awesome. Though I lose 14k warriors, it takes me like 40 minutes to build that back and I have a huge excess amount of lumber right now, and by the looks of it I'll have extra iron too. Its a good way to prep for being able to attack a level 10 npc.