In my opinion, no responsible breeder should ever sell a kinked animal. If for no other reason (and there are others) but for your own reputation.
As bad as it sounds, that animal goes in the freezer.
Reason being, you neve know as the breeder who the animal is being sold to, even if they only want it as a "pet". A "pet" snake can quickly become a "breeder" snake and then that kinked "breeder" snake makes babies that are kinked.
Now regardless of what that animal was sold as, your name as a breeder can quickly turn to poop.
All you've got is your reputation, breeders should do more to protect it.
We also don't need any more genetically deformed animals in this hobby.