I am hoping that you are asking this question and not the owner, but I would agree with Deb. As cute and adorable 8 week old puppies are, they are a lot of work.
That young they are not potty trained, want to play at all hours of the day, just learning their little voices and barks, are going to be getting into everything, and then not to mention there will be 5 of them. (speaking from experience: when you keep them in a confined area, they will go potty, step in it then jump all over their brothers and sisters).
I would say absolutely NO, to having people come to your home to see the puppies. These are complete strangers who you know nothing about. (chances are they are random people from Craigslist) I would expect her to want to meet the people that she may decided to sell the puppies to. (That is so not your job, not to mention puts you in the middle) You than have to plan your days around people who may or may not show up to see the puppies and who may or may not be on time to see the puppies. That is not right for her to have asked you to do. I find it very imposing. If she wants to find homes for the dogs, she needs to do that on her own time.
Be prepared for the owner to ask for a discount- in which I would say no. when you have 5 dogs it does add up quickly but it still is the same amount of work for you (if not more). Best of Luck!
Holly, I am just interested. Did you host the five puppies?