Is your tree in distress? Or were you distressed looking at it?
I would not, under any circumstances save the prevention of death, take a chance with a tree I have not had for many seasons at this moment.
Later this fall... assuming your tree is healthy, you could repot it once things cool off and go dormant. But if you do... be sure to protect it well - even where you live. But again... if you don't know how the tree has been kept, or when it was last repotted, I'd wait. If it's a nice one, you really should take the time to get it up to Kathy Shaner and have her advise you. She does study groups up in Santa Rosa that are very reasonable, and they happen fairly often. She's a wise and wonderful teacher. Or there is Boon... his work with pines is amazing, and he's in the Bay area.
Take advantage of your local resources, and learn the techniques to success the first time.
Kindest regards,
Victrinia