In my, very limited, experience, huckleberry, all the cane berries, etc, aren't going to be tall enough to provide privacy.
Evergreen huckleberries (Vaccinium ovatum) can get pretty decently high. There are a ton of them around here already in the 8' or so range. A bit of reading on them made me think they'd be pretty swell for the outside of any food hedge, since they'll be shaded half the day (at least) on the E/W sides, probably all day on the N, and the south has a bit of a ridge they'd be on anyway so they don't need to be as tall. The real problems are a steep dip into boggy bits in a couple spots, and I've not quite figured out something tall enough and evergreen that'd also be useful. I'm a little hesitant to consider Hawthorne in any number due to susceptibility to diseases that could impact other fruit trees I intend to plant.