I don't have an orchard but I do have 4 AU Roadside Plum trees, 4 Elberta Peach trees, 2 Fig trees and a long row of Muscadine grapes.
Everything is 3-4 years old and I'll be getting my first good crop this year.
With the fruit trees, you really must spray them with Dormant Oil (once early spring after last frost and once in mid summer) or the bugs will ruin the fruit.