I have a customer asking me to dig up and move two Arbor Vitae and plant them about 20 feet away. I have transplanted small evergreens and bushes before but never something this large. From my experience evergreen roots run shallow and spread way out from the bush. There is a patio about 2 feet from these arbor vitae so I'm concerned about roots going under the patio. If you have experience with transplanting these please share your experience and any tips for ensuring the plants survive.