Thanks for the screenshots, Chris. And yeah, I often forget about running Caste-enabled artists to pop borders.

I agree with all your points, although chopping now by Fishenzia would speed the workboat, if I remember correctly. Yes, we'll have to be careful with fogbusting out west. I moved the axe temporarily to the coast to watch for passing ships while the marble worker could fogbust. Yes, I could play some more if desired.
Here are some short- to mid-term considerations. Our breakeven is basically at 0% research. Growth will help a little, but I think we seriously need to consider building at least a few cottages to help us in the long term, and/or have some city run a bunch of merchants (with an eye to trade missions). At some point we're going to have to back off on running specialists for awhile so we can grow Deli, etc. some more, perhaps after we get Math and trade for other techs.
Our explorer workboat in the north is 5 turns from reaching the eastern island, and we'll have one in the west around the same time. BTW, Zara has sent a workboat off to the west. His tech rate is pretty impressive and he has the GLH. We shouldn't trade Alphabet to him for awhile lest he beat us to lots of trades, which leaves only (?) CoL as a tech we have that he doesn't.
After Alphabet I favor Math. This gives us the chopping bonus, opens up Hanging Gardens (after an aqueduct), helps with Currency, is required for Civil Service, and would be good trade bait. I'm thinking maybe we want to save the forests around Incensia to speed-chop HG. We'd get a major population boost, more health, and it would give Incensia more culture to push back Laibela and eventually take over the oasis.
We have two more good city sites, by the rice/FPs and out west by the
clams crabs. The
clam crab site is calling Moai to me, and we could chop it out very quickly. As soon as we get Sailing (presumably in trade) we should settle sugar island lest Zara takes it. Where and when should we build more settlers? I don't think we can afford another city right now, but maybe after we get Math we can use our food-heavy cities for that.
Deli: library, monastery (for +10% research)
Oraclia: axe?, temple (1/2 price, could run a priest to boost Prophet GP rate --> shrine)
Estonia: granary
Argentina: finish FW, finish workboat
Incensia: ?? See below
Marblia: finish granary or switch to another workboat for its clams?
Fishenzia: workboat, granary
Chichen Itza is a placeholder in Incensia--no hammers yet. We don't want it, but it would provide some stone-powered consolation gold. It's enabled by CoL, though, so it'l be awhile before anyone else can build it unless/until we trade it away. I'd remember CI for the future but would probably build an axe first, then work on an aqueduct/Hanging Gardens when Math comes in. BTW, Zara may be our buddy but he will still DoW when Pleased. Let's not invite trouble.
Speaking of military, how many warriors do we have? When do they go obsolete? When we get Hunting? Iron Working? I think we want at least 6. If we don't have that many now, let's build 'em ASAP.