If you only want to pay face value, you will just have to hunt and peck around and hope to get lucky. There have been plenty of discussions on this forum on this topic, with members telling about their local finds. In general, banks recirculate notes, so a better place to find Unc notes is some of our country's fine gaming establishments
because they have a greater need for high grade notes. They get rid of a lot of notes that are mildly to moderately circulated, though this is a generalization and not absolutely true of all establishments.
From what other members have discussed, many banks WILL order in new notes, but there are usually costs involved, and because you said you wanted notes at face value, this option is not feasible for you.