Not sure exactly what your looking for in an answer but If you are moving the tree I would do it in a fashion that any tree would be done. I cant give you any definitive info on this species not having any personal experience with it myself. When discussing any tree there will always be a tap root, its size and exact location/direction it is going will vary. When concerning younger trees digging up should be done with caution as the root ball might not be as proportionately distributed as it should be and the majority of the roots might be protruding from the tap root.

Im unsure as to exactly what you are planning for the tree but if you want to play thing safe and are unsure as to the root mass in general I would recommend digging a half semi circle by simply pushing your shovel into the soil (a distance about five times the diameter of the trunk) one year and then doing the opposite side the following year, then removing the tree the third following year. This is done to cut off a length of the horizontal growing roots causing them to grow more root hairs further back resulting in a denser more compact root ball. I would also recommend digging it up during the season where the weather is more cooler (not sure exactly when that would be in your zone though).