The first stage of the Saturn V, S-IC, the third stage, S-IVB, and the Instrument Unit computer, arrived by boat on March 13, 1967.
The first stage was put together in the Vehicle Assembly Building (VAB) four days later.
The S-II second stage was delivered two months later.
Scientist used a dumbbell-shaped spacer so testing could proceed.
This had the same height and mass as the S-II along with all the electrical connections.
The S-II arrived May 24.
It was put into the rocket on July 7.

Testing was slow as they were still getting the Saturn V ready for Apollo 4.
While the building could hold four Saturn V rockets, there were not enough people or equipment to work on more than one at a time.

The Command and Service Module, a Block I model, as flown on three other unmanned tests, arrived September 29 and was added on December 10.
It was made from two existing spacecraft, the CM-020 and SM-014.
CM-020 had been damaged in an explosion.
CM-014 had been taken apart as part of the investigation into the Apollo 1 fire.
After two months of testing and repairs, the rocket was moved to the pad on February 6, 1968.
The first stage of the Saturn V, S-IC, the third stage, S-IVB, and the Instrument Unit computer, arrived by boat on March 13, 1967. The first stage was put together in the Vehicle Assembly Building (VAB) four days later. The S-II second stage was delivered two months later. Scientist used a dumbbell-shaped spacer so testing could proceed. This had the same height and mass as the S-II along with all the electrical connections. The S-II arrived May 24. It was put into the rocket on July 7.
Testing was slow as they were still getting the Saturn V ready for Apollo 4. While the building could hold four Saturn V rockets, there were not enough people or equipment to work on more than one at a time.
The Command and Service Module, a Block I model, as flown on three other unmanned tests, arrived September 29 and was added on December 10. It was made from two existing spacecraft, the CM-020 and SM-014. CM-020 had been damaged in an explosion. CM-014 had been taken apart as part of the investigation into the Apollo 1 fire. After two months of testing and repairs, the rocket was moved to the pad on February 6, 1968.
Apollo 6