My will is broken, I now need to sacrifice my free time to this challenge. I'm planning on trying the Jeb level with my current career. I am unlocking the 550 level nodes right now, and I've got the following mods running (mostly to add some variety): KW Rocketry, B9, Tac life support, Interstellar, FAS, KAS, and a couple others mentioned in the OP or not really relevant. The only thing interstellar definitely adds are magnetometers for more science and having to worry about waste heat. I wont use beamed power (feels a little like cheating) or the refineries, are the fission reactors or thermal & plasma engines okay? Any KW or B9 parts to avoid? Still close to cheating, but how about power generated by the main ship and beamed to landers? Off to the white board!