I've made satisfactory progress on code that will generate a complex of structures, but I'm still finding undesirable side effects like:

my structures overlapping with standard-game villages

plants, animals being killed/harvested (with items left floating in the structures)

 

Is there a way to detect whether a village is already spawned in a chunk?

 

Also I'd like for my structure generation to happen before plants and animals are spawned, is there a way to time it so?

 

Thanks in advance!

I'm also curious about these questions. Did you have any luck, sabrinastar?