it's not too hard t'planting mature plants with proper preparation.

1st, a couple days before the actual move, take your shovel and 'cut' a circle as deep as your shovel will penetrate about 10" from trunk (you'll end up with appx 1.5' diam circlular cut) around the plant. water em heavily immdiately after cutting the soil and add a hefty amount of "super thrive" or similar stress reducer (check your nursery). a couple days of rest and they'll be ready for their move into their new holes (which you have already dug and are waiting to be filled). after they're in their new holes gently but firmly tap down the new soil but not too packed...then apply another heavy dose of super thrive and they should be fine. you might see some wilting but no need for panic...after 24 hours in their new holes they should look normal again.