I am on the last mission in the demo with these benefits:
Carrier Support Bay
Android Bay
Emp Shield
Emp Cannon
Megaton Missle Launcher
Micro Crew Module
Powered Armor
Reinforced Powerplant
Frigate Armor III
EMP Missles #1
Ipoint Defense #2
Frigate Small Beam Lazer
I have bled the other 2 dry, reducing to a mere 2 battleships on the tutorial mission, but I could possibly squeeze less now on the 2nd mission.