Reasonably priced tickets are going to be an issue when compared to Michigan games (The lowest price for good ACC games is usually around $400-$500). A good price for tickets at the higher part of the upper deck will be about $200 for an unranked team.
Right now stub hub has a couple decent ones under $200. I'd expect things to get pretty high given that Michigan is quite literally our only decent non-conference game this year. Lower bowl seats not behind the baskets will be $1,000-$2,000. https://www.stubhub.com/north-carolina-tar-heels-basketball-tickets-north-carolina-tar-heels-basketball-chapel-hill-dean-smith-center-11-29-2017/event/103119266/?sort=price+asc
Of course the performance up to that time could change things. UNC has no center and could go downhill fast compared to expectations. In short, $200 might not seem reasonably priced but I wouldn't be too confident on it getting better. If you're confident you want to go I'd at least consider jumping on those $175 ones in section 211, they're pretty good seats.