Question: It was a palace, huge and carved inside out.
The enormous palace was carved on the inside and on the outside.

Answer: yes

Question: The back walls of the pylon have scenes of the yearly meetings of Horus and his consort Hathor, who traveled on a sacred barque (slender boat) from her temple at Denderah for the reunion on the Nile.
A consort of Horus was named Hathor.

Answer: yes

Question: It is expected that one SCR system requires about 21 months of total effort for planning, engineering, installation, and startup.
It takes about 21 months of total effort for one SCR system.

Answer:
yes