[asheshouse]

The country template is quick to make because you only want to make perhaps one farm in a map_T pixel area.

If you make three versions of the template (Type A, B, C), and you make three versions of the map_T, each with some of the country textures omitted (Type 0) then you will get three different sets of outbuildings.txt to merge.

This introduces a lot of variety.
Each of the final map_T country textures could have combinations of:

No buildings
A
B
C
A+B
A+C
B+C
A+B+C

8 variations possible

You can add other template versions to increase the variations further.