Try the Keiffer pears and crabapples. Crabapples are hardier than regular apple trees and more blight resistant. I would not plant nut trees where you have other nut trees as you are trying to give the deer something different that they are going to like more. Be sure to use moisture mixer. You can buy at Home Depot etc. a lot of the time bigger trees are root bound and do not develop their root system as well. Also I use rootone which causes trees to grow more roots when transplanting them.
