preturn: Lower sci to not go negative.
1475BC: Settler moves off the river but get two BGs and one wheat immediately.
1325BC: Aztecs start Pyramids, and Hitties have Writing.
1300BC: I get Polytheism from Sumeria by Iron Working + Wheel.
We could get Monarchy in 36 turns, or we could get Writing and Philosophy and pick Monarchy as free tech. This means we will not be able to research Construction or Map Making. I guess that's fine? We probably don't need harbors.
I get Writing from Hitties by Math+19g. This is the last tech trade I think we should make with the AI.
If we connect the ivory, we should also build Zeus.
Philosophy in 12 turns.
1275BC: America demands Writing, sorry no way. And he backs off.
1250BC: Found Bactra to claim ivory.
I establish embassy with Hitties. It's size-2, has two spearmen, building a settler in 5 turns while growing in 10.

It has one lux, no horses or iron connected. It only knows Celts and us.
We'll get Philosophy in less than 10 turns. I suggest we attack Hitties afterwards before it connects the horses and iron, and trigger our GA.
We need to decide which city to build ToA. Capital seems to be the obvious choice (we could build it within 50 turns I guess), with the side effect of slowing down expansion. But I think we don't have to settle every tile before we wage war. We could start war very soon. Otherwise Antioch, which is building a granary.
Techwise, we should avoid making more tech trades with the AI and skip Map Making.