*Deleted, we're not in need anymore.
I'll second this.
Also 5.
I can build Missile Silos. Each silo holds on missile. Missiles must be smaller than 80 Feet. I can build 5 at a total of $500 Million. The doors are extremly heavy and must be opened by a small explosion.
Confirmed construction will be complete in 1 RL day (1 NS year)