OK, here are some numbers:
The warrior from FC can get into JD on t101, releasing the chariot there to get into OO on t102 (just in time to keep OO happy).
The 2XP chariot can reach DT by t103; a chariot built this turn can reach OO by t100. A spear could reach by t102.
That would leave us 1 warrior in IS, 1 warrior in JD, a chariot in OO and an axe in the southern city, and needing to build an archer and longbow to defend the southern city. We wouldn't need both the axe and the chariot in the east though, we could use one of them to barb bust the northern desert, after which we would only need 1 other unit to keep the east happy, and 1 other unit to barb bust between the east and west (so 2 more archers), which would mean that only barbs could approach JD from the SW, and we'd have time to get a chariot/axe out of IS to deal with that.