1. Animania compat. Would it be possible to add support here?
2. Haven't gotten around to playing around with this mod yet, but if they aren't natural spawns, why not have the villagers spawn in villages?

Closing since Animania hasn't updated beyond 1.12

Apparently Animania has a feeding trough of its own which would probably solve this problem if it wasn't for the recipe collision #59

What in Animania needs compat?

The merchants aren't supposed to spawn independently from the market block.

Animania has it's own system of feeding animals and what not, for instance, as well as watering them.