Okay, leaning towards option (b) then.
If we don't succeed in picking up enough AI towns to get a 1000-shield palace, then we would be left with 800-shield palace in Kyoto or 800-shield Suffrage in Constan as prebuilds. Certainly Constan could then get UN the turn after Fission is obtained.
Kyoto I'm not so sure about. I suspect it has about 4 "elite" tiles (hills, bgs), 10 "vets" (grass, plains) and 6 "conscripts" (water). That's a total of 76"hp"; 40fpt for the citizens, 36spt left over. After factory, plant and corruption it will probably max out at about 70spt, so might manage UN two turns after Fission.
Also, the problem with Suffrage is that if France get Industry, they will certainly build it. I would expect them to manage Industry between now and the end of the game, unless we go and conquer them. But in fact I would recommend that as soon as (a) we have Combustion, and (b) they have finished their current research, we gift them up in the hope they go for Flight.
So anyway, we should start thinking about where we can get AI towns on the cheap. I'm sending a couple of transport ships westwards for that English campaign that we keep getting distracted from. We could have a look at the Zulu too; 4 towns, all small. We'd need to land a stack of infantry though, as I would guess the island is thrashing with impi. arch's gpt deals all end in 9 turns.
Also, here is my fairly optimistic prediction of how our research should pan out for the last 7 techs of the game (assuming we don't have to research Replaceables, Atomic, Electronics or Fission)...
Steel and Refining could be swapped, probably still for 14 turns total. Flight could be brought ahead of Mass Prod; it would make the beaker progression smoother, but then we expect a jump in beaker production when our Docks get built anyway, so I guess this is the optimal order. Docks only cost 80 shields for SEA civs yes?
That makes 40 turns of research left. We are currently on turn 200, and turn 240 = 1250ad, which would land us right in the region of klarius and Ivan's finishing dates. We could actually scrape a second place

(assuming that Spooks finished, rather than gave up of course).
Teams still playing are Regular, Smurkz and tao.
Edit: still thinking about the French... for them to be any help at all with Flight, they would need to making about 400bpt (their cost for it will be 4320 beakers I think). I presume that isn't even remotely possible?