Here are a few comments:
I havent traded construction to Gil. At first because I didnt want him to have the Great Wall. Later on I thought it can be used to drag him in a possible war against Bill.
Theres a worker scouting Gils land. He has connected Gil and now is looking if there are more roads needed.
At the different city placing. Well I know its somewhat unfair to you guys but I didnt felt like doing the extra mile and look up the dotsmap. Sorry about that. But all cities I placed are there for a reason: prevent barbcamp NW, grab the SW cow, make a few connecting cities. Concerning the Tiawaku-settler: I had N in my notes, but looking it up after your question, I see you said NE. Well it still can be done.
At the moment Gil is our best friend and hes in warmode as he has 2 wars running (against maya and against thea). I dont know for sure, but he could be in his GA or if hes not he could be at any time soon. Even without a GA he is the strongest AI, I think. And we still have to trade for his free MA tech shortly.
My plan would be not to attack Gil next, but Bill. Our army is at Bills border and we can possibly use construction to get Gil in on our side.
Oh yeah, I miscalculated, theres only 1 1-tile island to the SE, as Paul stated. And on that island we have a warrior, so my mind is at ease.
The exploring curragh only saw unpopulated coast. If thats part of barbaria, then Dr. Evil still has room to expand. Buggers that the curragh got intercepted.