Arriving on a Tuesday at 1645, departing next day at 1605.

Free hotel from MS. And I assume free transit visa.

That said, 2 pax- how to maximize the stay. MS TA offered this;

"Have a good day from Karnak Egypt Air Tourism Sector

As long as you are two persons the cost will be as follows:

1) For the dinner cruise on the first day of arrival the cost will be 70$ only seventy American dollars per person including transportation and dinner on a 5 star ship moving on the River Nile for two hours starting at 8:00 pm finishes at 10:00 pm, with folklore dancing and a belly dance show.
Drinks are not included.

2) For the Sound and Light Show at the Pyramids area, it will cost you 50$ only fifty American dollars per person, including transportation and tickets to the show which starts at 07:00 pm finishes at 07:50 pm.

3) On the second day i recommend for you either the Pyramids and the Sphinx OR the Citadel. It will be costing you 45$ only forty five American dollars per person (for each sightseeing) including transportation, English guide and tickets to the area. The tour takes around 3 hours. Otherwise, I offer for you both the Pyramids and the Egyptian Museum costing you 70$ only seventy American dollars each person. That cost includes transportation, English guide and tickets to both areas. The excursion takes approxmately 5 hours. "

Any suggestions and improvements welcome^

Searched this forum for "Cairo", and none of the last years thread titles covered this aspect specifically.