I ended up offering peace for the banana city, which Sucksatciv accepted. So we have 10 turns of enforced peace and I turn my Zulu-defensive army into a city which should be able to (if nothing else) produce enough military to defend itself and serve as a defensive buffer to my core.
The event log shows a message about liberating the city in a gracious act of generosity
so unfortunately the whole world will know that I extorted a city for peace. Notice how Sucksatciv settled another flatland border city 1NE of silver. This 10 turns of peace will be just enough time to allow that location for grow and ripen for the next season of harvest
But in all seriousness, I'm going to try and cultivate Superdeath's previous signaling for a resumption of war in 10 turns. Superdeath shouldn't be too upset about the immediate peace treaty. After all he only just built is first real military unit last turn and then was in anarchy for Buddhism revolt this turn so it's not like he had an army at the ready ... or even 5 turns from being ready. Hopefully he gets the memo and builds up a stack for next time.
Meanwhile Pyramids ETA roughly T80. Madrassa will be whipped in Decision Makers next turn and will birth a GScientist in 9 turns (EOT76). Math bulbed T77 and the first chops land. The two scientist specialists alone can research 2/3 of Masonry in that timeframe and I'll save enough gold to finish off the rest with 1 turn of research. I have up to 9 chops available for a total of 405 hammers. I can 2-whip overflow something as well for the equivalent of another 45 hammers, and I could potential whip-cascade Madrassa > worker. All-in-all T80 should be a comfortable date which I can beat by a turn. The uncomfortable fact though is that someone research Masonry 2 turns ago
The earliest I could possibly complete Pyramids is EOT78 since I don't have enough workers to chop all the forests on the same turn that I bulb Mathematics. Another constraint is that I need 6 worker turns AFTER Masonry to connect stone, which draws workers away from the chops.