Goodness. That must be pricey. Maybe if she were much younger... and I won the lottery. I just don't want her to suffer. She's still doing good for now. Had egg and yogurt with powdered egg shell for breakfast, then spent the day with the other two outside in the sun.She made it to a good age.
I have seen success if you take the hen to a vet and have the reproductive tract remove. I watched a show from Disney about the doing this with one of their flock from their zoo in Florida
Here's little old Fudge.