
Basillicum |

Sounds cool! I think a good idea might be to use the existing flip mat that covers the Sandpoint Festival area (in front of the cathedral) as a starting point. It gives you a good idea of how large common houses and paths should be, and one could build the rest of the town from that point.
I may have misunderstood what you plan to do though. Were you planning on putting together a map that focuses on each alley and square, or simply print an enlarged version of the Sandpoint map in the player's guide?