I wish we had a sub forum for challenges of the first generation students.
As part of your research, see what kind of supports and programs are at the colleges for first generation students. these often go under the name of TRIO which is funded through the government. https://wp.stolaf.edu/sss/
Other colleges have specialized orientation programs for students of color and/or first gen students. They are sometimes named “bridge” programs but each college controls the naming. https://www.smith.edu/about-smith/diversity/programs-services/bridge
Does the college have a social organization for the students? https://www.smith.edu/news/smithies-host-first-gen-gathering/
As you consider finances, think about how much flights to and from might cost. Planning ahead can save on airfare but the costs can mount particularly if the student has to take a shuttle for an hour or more to the airport. Pick a week in March and price out what the airfare would be for the weekends on each end as a proxy for spring break. If you are thinking that she would not come home for spring break, check what policies are for a student to remain on campus. If your local airport has discount carriers like Southwest, which colleges are served by that airline?