A fairly large number of colleges attach large scholarships to NMF status; a smaller number attach scholarships to CBNRP status. You may want to start looking for colleges in these categories if you want her to find lower net price colleges if she cannot get into those with the prestige you are willing to pay for.
Realistically, chances at top 15 most selective colleges are very low for almost all students, so the application list must include other colleges that are more realistic for admission, she is happy to attend, and you are willing to pay for. Regarding ECs, the applicant pool at top 15 most selective colleges will include many who have state or national level awards, recognition, or achievements in ECs. Athletic ECs may also be privileged over other ECs (e.g. at Harvard, admissions does an athletic rating in addition to an extracurricular rating).