I called them yesterday. they're way up north. she gave me some numbers of people who 'might' be able to help me. But, my kids already buried the chickens. I could dig them up if I really needed to. But I'm going to look into this whole parasite thing first.
I wouldn't think they would be any good for necropsy now your suppose to refrigerate them and get them sent out as soon as possible.
It's the seeds of the pumpkin that helps with worms. And if yours are that bad off I would treat with medicine. Dawg53 is the worm expert you could PM him and see what he thinks.
https://www.backyardchickens.com/u/19157/dawg53