Oxygen and Coolant can be made on a storm planet.
Robotics and Enriched Uranium on plasma planets.
Mechanical Parts on Barren planets.
I use a Lava planet to make extra Consumer Electronics for Robotics production on the plasma planets.
Very little maintenance/moving stuff around, it more or less takes care of itself 
Robotics - Plasma X 2
Enriched Uranium - Plasma X 1
Oxygen, Coolant - Storm X 1
Mechanical Parts - Barren X 1
Consumer Electronics - Lava X 1