So I have been using this mod to spawn some special trader mobs in villages and have run into some obstacles:

Problem number 1: "structure": "Village" spawning rule only really effects a fairy small area around the village center. I am not sure if this is true for all or most structures really, I am not sure how structure spawning works.

Problem number 2: Population control per village is a problem. No way to do a relative population thing like iron golems. Well, without a lot of rules anyway, I think it may be possible to do a bunch of different rules for different population levels with mincount and maxcount but even then I have no idea if it's global or local counts.

Problem number 3: Ideally, I would like to just replace some or all villagers with other mobs, but they both probobly wouldn't count to the population properly and there is no way to just replace a mob with another anyway. Though it would be cool to have a "result": "" thing in addition to the others, but how practical that would be I have no idea. Also there would probobly need to be an NBT match condition for professions.

Of course I can work around all this for the most part, just putting my thoughts out there.

I am on vacation right now so I will check it out when I am back

Oh right, you said something about that in that other thing. I didn't mean to interrupt anything, just wanted to blab for a bit. Have a nice vacation!