Your problem would be getting ripe fruit with your frost pocket and short growing season. There’s a couple of really early cultivars that may get you fruit in longer growing seasons…Halvin, Summer, Delight, and VE-21 come to mind. At the least they’re a tropical looking, ornamental tree in the landscape.
KSU Chappell is by far the most vigorous variety out there, but not necessarily precocious. That’s a nice one to have if you want one to size up quickly. They can be slow growing the first few years so it’s nice to have one that at least looks like a tree.