Barnabus:
Is the map of Helix to be properly understood as an abstraction to an extent? That is, would there be any number of residences not pictured in the western area of the map?
That is how I have always regarded it. I think its primary purpose is to help orient participants to the major structures in the village. There would be more residences on all four sides of the settlement than are pictured.
Barnabus:
How would the windmill do as a stakeout location for the southern gate?
It would serve. There are some upper floor windows that face southward.
The miller, Hendon, and his family reside there. Hendon is a former ranger. His son, Tamson, has served as one of the guides for the party on the Barrowmoor. There is also a spare room in the mill that is currently rented to a long term tenant.
The miller can be found at the mill at almost all hours.