Like George said earlier on this thread, moving large trees is difficult and often a bit iffy. If they make it you have hit the jack pot with instant gratification, if they don't make it all you have lost is time.
Planting seeds or very young seedlings has a higher chance of growing for you, but it will take several years to get any real size to the tree, and several more years beyond that to get any shade. During that young growing size they are very susceptible to deer damage or rabbit damage. I was at an old time local hardware store today pricing fencing for the trees I want to plant this spring. I had used welded wire years ago when I planted the orchard. I think I will go with green plastic fence this time. I am still going with 4 ft high, and making a circle with a 4 ft diameter, but the holes are a bit larger than the welded wire was. I still do not think a large rabbit could make it through. It is a lot flimsier than the wire, and it will not last nearly as long [ the plastic gets brittle in the sun after a few years ] but I can get 100 ft for less than $50. I think the welded wire was almost 4 times that much. The welded wire I put up around my garden has been up for about 28 year with out being painted or maintained in any way so I know the wire will last for many years. The 100 ft should be more than enough to protect all 10 trees I hope to buy. I can cut the posts, or stakes if you prefer, to hold the fence up around the trees off the place. Three or four stakes around each tree should do the job and I can hold it down with plastic ties. I am thinking that the plastic will last until the trees are high enough that the deer will not be able to top them, even on their hind legs. At that point if the plastic is brittle and breaking up it does not matter. Plastic may not be the Permaculture thing to do, but if it gets me 10 more fruit and nut trees growing here for years to come that the deer can not kill I feel it is a fair trade off. I find at my place if I want a tree to survive that the deer like to eat I have to fence it off. You may have the same problem at your place. If you pay a lot of money for tree I would not only water and mulch them, I would fence them off from the deer.
Never doubt that a small group of dedicated people can change the world, indeed it is the only thing that ever has.