mending

So yeah, i wanted to ask if it was possible to get a mending book.

I currently have no budget but I do want a reasonable deal. I did have my own source of mending books but someone did in fact kill the villager. So now I need mending books. I am looking for 10-15. Tell me how much minimum your price is. We can try to work out a deal. I also need an elytra. I...