I think we can manage our logistics like this:
Send galley back from barb island to rice city to handle transport between the sugar island, gold city, and mainland.
workers chop the rice galley then pre workshop the capitals cottages.
Delhi:
Immediately start working both grass mines and build an observatory in 11 turns - we are not production limited, only research and GP limited. Start working cottages again once observatory is built.
Send artist to ivory, arrives T+5
T+16 finish missionary, spread to gold city on T+21
T+21 missionary for sugar city, spread on T+25
T+26 missionary for Bombay, spread on T+27
Build wealth/research till the U.N. is available
Oasis:
settler T+10 send to ivory with warrior garrison
T+13 build archer to replace garrison
emphasise growth and build wealth/research
Incense:
Cancel this city and send settler towards ivory.
Marble:
T+10 build archer. Send warrior to ivory, arrives T+24
Build wealth/research
Send GP to ivory when generated, arrives T+14
Rice:
Chop galleon, send to ivory
Build archer, send warrior to ivory, should arrive by T+24
Send GP to ivory, arrives T+40
Two fish:
Send scientist to ivory, arrives T+7
T+9 finish galleon
T+16 archer, send to ivory, arrives T+27
build wealth/research
Bombay:
T+6 mace, arrives ivory T+16
T+12 mace, arrives ivory T+22
T+18 mace, arrives ivory T+28
T+24 mace, arrives ivory T+34
build wealth/research
Sugar:
T+3 mace
T+11 mace
wealth/research
load 2 maces onto galley and send to ivory, arrives T+16, then use galley to transport units between the mainland and ivory.
Ivory:
T+4 mace
T+8 mace
T+13 mace
T+16 missionary
T+21 mace
T+23 missionary
wealth/research (2T)
T+28 missionary
T+31 missionary
wealth/research/extra missionaries if needed
T+16:The 2 galleons should be ready to lave from 1SE of the ivory on T+16. Load them with 1 settler, 1 missionary for the coastal city, and 4 maces. Should arrive on T+19. Hope the maces can capture a worker to connect this city to the barb road network.
T+23: The 2 galleons sail again with 4 maces, 1 missionary, and 1 warrior. This should enable us to take Devils gate on T+28 and raise Zhou by T+35 at the very latest.
T+29: The 2 galleons sail again with a missionary, settler, 3 warriors and 1GP.
T+40: Final galleons sail with last 3 GP's, and any spare missionaries that are needed
We would have 2 maces in reserve on ivory island under this plan, but we could build more if we thought we had a need for them.
Everything should be ready for victory on T+45 at the latest. We have plenty of spare production for additional missionaries/maces if we have a need for them.
I thought we were building SP so as to deny an AI access to FR.
This is what I thought as well.
I guess the ducks scouted them much earlier and are/were thus in army mode - which really might damage their techpace 
))
