You have just been appointed as the Deputy Administrator of KSC for Missions to Duna and Other Celestial Bodies which Start with "D" (DAKSCMDOCBSD for short). Your first (and currently the only) job is to implement the President's Vision of "establishing the first continuously-crewed outpost on the surface of Duna" by the end of Day 500. And on your first meeting with the Deputy Administrator for Rocketry, you have been informed that for maximum production & launch efficiency, all your space