There are several good dwarf varieties available, and they have the advantage of low hanging fruit. Buy the oldest trees, but the nursery trees are likely all the same age. Bare root is a good idea. Make sure you give them room. Oh, and I hope you like apples, because in a few years 3 trees will produce bushels and bushels of fruit. Which is good for cider, if you know a guy with a cider press(I imagine MI is a little like upstate NY in that way). If apples will grown in our crappy soil, they will grow anywhere. One little hint is to spray early spring with an fruit tree oil available at Lowes and elsewhere, (not a pesticide, a light oil that suffocates the little aphids and scale critters that will ruin your trees eventually). Then lots of blossoms and fruit. Every few winters, trim the suckers for more blossoms. It makes the trees more vigorous. I would go out the tool shed and check the can for the name, but I am sitting on our lanai in Waianae right now
Glenn