I tried out your suggestion and mine, very roughly to get an idea of tech constraints and labour, etc.
Your suggestion completes the Pyramids t75 with only three cities (could be more as we have too much worker labour), with one library ready to start running scientists and five workers.
Mine was a couple of turns slower (getting Myst delayed Maths by a turn and there was an extra forest to cut) but has five cities, an Obelisk and two libraries in place and four workers.
I'm sure I can optimise both by about five turns, but feel free to try and beat me (and to do a better job of your suggestion). Next turn we might discover something east of the peak which would change our settling options, but this sandbox is otherwise up to date.
Edit: A maths-bulb might speed up things a bit.
Your suggestion completes the Pyramids t75 with only three cities (could be more as we have too much worker labour), with one library ready to start running scientists and five workers.
Mine was a couple of turns slower (getting Myst delayed Maths by a turn and there was an extra forest to cut) but has five cities, an Obelisk and two libraries in place and four workers.
I'm sure I can optimise both by about five turns, but feel free to try and beat me (and to do a better job of your suggestion). Next turn we might discover something east of the peak which would change our settling options, but this sandbox is otherwise up to date.
Edit: A maths-bulb might speed up things a bit.
Completed: RB Demogame - Gillette, PBEM46, Pitboss 13, Pitboss 18, Pitboss 30, Pitboss 31, Pitboss 38, Pitboss 42, Pitboss 46, Pitboss 52 (Pindicator's game), Pitboss 57
In progress: Rimworld
In progress: Rimworld