Beyond the website.....which I am going to assume she has thought about a lot.....I urge her to quickly get in contact with
http://www.fabshopnet.com/ which is a trade association for fabric shop owners. (More than what most of us know as FabShopHop) Laurie Harsh is a wonder; she began this business in the late 1990s and has saved, encouraged, taught, trained, and demanded the best from many owners who are still going strong. It may be the best, fastest help your daughter can get.
Good luck to her! There's nothing like following your passion and having it come to profitable fruition!
Jan in VA