Love BA Cedars. I bet it will like Duluth weather. Hear of other up here that say ample yet even storage humidity is important to avoid winter needle damage--I have never had one though. Lovely, but not so sure about the aerial root on this one.
Glad that this one is still going to be seen here. I hope that some other lucky folks get some of that good stuff that Will is letting go.
Be cautious when repotting, make sure you don't do it if the root tips are beginning to turn white, as that is too late. You might get away with it, but the tree is likely to blow off all old needles, and scare the crap out of you. If healthy, no big deal, it'll put out new growth, but better to repot early than late with these....
Sorry if the unsolicited repotting advice was unwanted, or offensive to you. I wasn't trying to say that you don't know what you are doing, or anything of the sort. Just something I've learned along the way with these, and thought to pass it on...
Here it is at the end of summer 2017.
That is an amazing tree. *jealous*
I like the tiny yellow flowers you added in the one pic (violets?). I'd almost suggest you add another two or three clumps (if they are violets), maybe some purple ones/violet ones? To give it an alpine look.
Cheers.