I do have to kind of agree with Xandra, if I was a buyer on the waiting list.. I would be CONCERNED, not turned off, by all this stuff going on. Not that you were honest about it, but maybe about the robustness or socialization of the puppies
So perhaps make it extra apparent and make a note of saying that regardless of the rough start, these pups are where they should be and healthy developmentally and temperament wise and that this wasn't an issue of a weak dam or sickly puppies (which is what many people do think when these kinds of things come up and they don't know any better), but just delivery complications.
Disclaimer: I work for Trupanion and love it/our policy! But I do not speak for the company or as the company.