Thanks!
Her AP test scores so far are: Calc AB (2), Euro History (3), US History (4), Env Sci (5); other three are this year.
Cost of attendance is possible, but considering she has a full tuition ride at a very good honors college and she will probably get into a UC and CSU school or two, it would have to be aid of $10K-$15K to make UNC competitive.
Familiar with its competitiveness OOS; waitlisted myself OOS back in the 80s, so I went elsewhere.