Answer: Unfortunately, this is a big project and may be quite difficult with a mature tree. I would strongly suggest you consult on site with a professionally trained and certified arborist (ISA certifies arborists -- International Society of Arborists) with experience in successfully moving mature ornamental trees. They would need to use a tree spade and heavy equipment to move it and they might recommend preparing it by root pruning beginning a year ahead of the planned transplanting. This would be done to try to concentrate roots closer to the trunk. Best of luck with your tree!
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