should I---

1- cut back, dig and pot up so i can keep watered and an eye on it? then winter the pot if necessary in the garage

2- cut back and transplant to a worked up area at the end of our trees on the property and move from there to house location when finally built? this area is mostly full sun and water could be sporadic unless raining

3- cut back and transplant to a friends garden and again move once home built?

I would dig, divide, then pot one division, put another division at the new site, another to the friends garden, and another back where the originals were. If one fails, you have backups.