Personally, I think your best bet is to plant it in a large clay planter, give it ample water and sun throughout the winter, and then transplant it in the spring.
Keep the dirt moist, since the air indoors is so dry in the winter.
I don't know how tall it is now, so I'm guessing in the range of 3' or less.
Also... does the tag give any indication as to its full grown size?
root ball is small enough that it can be transported in the back end of a pickup truck.. i'm guessing it's at least 12 feet tall. i don't know about the full growth, but it's a big tree when all grown up. you can google pictures.
We bought an October glory maple a few years ago.. at the time, the base of the trunk was maybe 3 to 4 inches; the root ball was about 4 ft in diameter. When we found out how much they wanted to charge to deliver and plant it ($200-$300 I think), I bout shat myself. I told 'em put it in the back of my colorado, I'd plant it myself. And we did... 'bout killed us, but we did it.. That was about 3 years ago & the tree is alive & well today.. Trunk is now about 5 inches in diameter with nice, dense leaves.
There are huuuuge planters, like city planters that it could be planted in to at least winter it over in soil. Eventually you will need a forklift or something to move it with you, it will get that big. I don't think it is the kind of usually dwarf tree to be kept in a pot. Why not find a Japanese Maple instead? They can grow nicely in a confined space like a pot.