@JamesKM : Check out https://admissions.unc.edu/apply/class-profile-2/
For now, your SAT math:760 and reading:720 is only a tad ahead of UNC 75% mark and since 78% of UNC admits are in top 10% of high-school class, you ranking of " top 10% in your class" is also pretty common at UNC. Your stats/ECs are weak for Brown/Duke and your stats are weak for Vanderbilt. Definitely give it a try but make sure you have several safety schools.