I want to build a village in Minecraft and then spawn some villagers in it. But would you accept this village or do I need a certain number of doors or other?
No, the main thing is a closed room with a door on it.
If you want to breed them still more, but since you spawn them anyway, breeding is irrelevant ^^
For a village, there are only a few criteria for the villagers to accept:
-Mind. 6 doors [active]
To create "active" doors, you just have to build them so that the villagers can reach them, they have a block over them (directly) and get sunlight from one side… That's all:-)