Nice. I started this city last month, had both GB in about 3 weeks
I was being plundered twice a day every day for the first 2 weeks by the same two people, but all they ever got were a few coins since I collect supplies at the same time every 24 hours. Only need 2 cultural buildings to stay at 120% so everything stays motivated most of the time (just collected everything before I grabbed this screenshot).
Another added benefit is that I have never built any goods buildings in this city. Collected enough goods through reoccurring quests to negotiate all BA provinces on the world map and finish the BA tech tree. Now I am trading goods up until I have enough to finish IA. Spending all those goods also put me at 2nd place in this hood.
Notice there are no military buildings here either... Haven't needed them yet. In another city I didn't build a military building until after I cleared IA.
Bottom line here is that this is the best and fastest way to start a new city. Getting plundered is not an issue. Notice how many coins and supplies I have in reserve... Loosing a few coins every day did not hurt progress at all.
Glarg, can't wait to see your GBs in two weeks guide.