Sorry for chiming in late @OhHey I have been traveling. For physics, you don’t need to worry about saving money for graduate school. If your daughter gets into a Ph.D. program it should be fully funded. In addition, most every physics degree is the same in content so you should find a university that fits your daughter well in terms of size and cost for you. If she takes the most challenging set of courses and gets research experience, she will get into a good graduate program. Our students at Illinois Tech have gotten into just about any graduate program that they were qualified for.
The schools that have been mentioned in this thread, all have fine physics programs. You won’t go wrong with any of them. The key is that your daughter is comfortable there and that the finances don’t stress your family too much. From your description, she knows how to work hard and that will work in her favor.
I’m happy to answer specific questions on this thread or in PM if you like.