Toshogu

International Kerbin Fueling Depot and Space Station "Zeus" Mods used Docking cam, Robotic arm, and the up/downsized structure mod thing oh and the one that makes you have to worry about electricity. Ample room for 12 Kerbals and docking clamp, 57,600lbs of liquid fuel, 70,400lbs of oxidizer, 4500lbs monopropellant, and a Berin-1 Robotic arm for simple refueling and fueling. Just park your craft near it and magnetize the arm to the hull and begin your fuel transfer.