That's what I was thinking: we can even get the city to size 5 and grow a capital cottage half way to a town whilst we're at it.
Doing this will mean tech path of AH (eot52)>Masonry>Sailing>Writing, but there is scope to swap Masonry and Sailing around, and still need to figure out what to do with the two forest chops between cities 6 and 7 (even if the barbs screw around with settling times, we use 6 worker turns moving the workers around so there will always be two forest chops to allocate).
Doing this will mean tech path of AH (eot52)>Masonry>Sailing>Writing, but there is scope to swap Masonry and Sailing around, and still need to figure out what to do with the two forest chops between cities 6 and 7 (even if the barbs screw around with settling times, we use 6 worker turns moving the workers around so there will always be two forest chops to allocate).