Ok, let's try to get a plan together, shall we?
Both sumeria and Aztecs are amassing troops near my Northern stronghold. That means they are both weakening their core and their South. A push South could be in order, but we'd need a couple of pikes from you.
After my GA I still am #1 in production and land, with #2 in GNP and pop. That means I should be able to hold the fort up there. Eventually, SoZ will pay off and I can really start swarming them with my cheap legions.
SoZ ETA 7 or 6 turns, depending on growth tile assignation. This will kick ass.
The ressource island final count:
iron x2
horses x2
incense x1
wines x1
ivory x3
gems x1
furs x1
That's 2 more luxes each, with an extra fur.
... but we'll need settlers and we'll need units to block the coast off. I think you should get a settler on the coast and join the fun.
The faster we block the coast, the merrier we are. This is what this game is about anyways: holding a grudge against coastal blockades. Let's race for that.
I'll put 4 horsemen on boats while you have 4 mounties on yours. You go from the east, I go from the west. Hopefully we can raze a couple of towns up there.