There is a whole theory behind root pruning. If done right the tree will typically recover.

The tree will be in shock for a year or two I'm sure.

Buying that large a tree you're fighting a battle with the roots but getting something instantly impressive looking. The roots would normally be spread some distance from the tree. Its a costly pain though to move and replant such a clump of dirt. So they prune the roots.

The other choice for that big a tree would be buying them grown in the pot. Then you have a problem with circling roots.

I plant smaller mail order trees but then I have to protect the lil fellas from anything which could eat them for a year or two with these little fences or just brave it.
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For advice, plant it and water the fellas! Don't fertilize em. Don't put fancy dirt or amendments into the planting holes. DO cut away as much of that burlap stuff as possible, even if you just cut it away after you set the rootballs in the planting holes. Oh, and make sure you get the planting depth right. Not too deep.

How much do you figure those fellas weigh?

Good luck and welcome to Garden Web.

Right. They were B&B & then potted up. Maybe they will be OK, but they were at a bigbox so their chaces are less. Second, if you are not above, say, Nederland in elevation they have even less of a chance of surviving. You should be at least 7000-7500ft elev to have any chance of these liking your yard.

Dan

Here are some tips on planting your trees...

Here is a link that might be useful: Planting a Tree or Shrub