Thanks, Carter. I have already taken approximately 12" off the top, leaving me with a 4' potted tree. It is now off the porch and into a GH so that it gets more sun and humidity. It will have to (forever) remain in a pot though. I will bring it in in November and it goes back outside in March.
I previously said it was a 4' tree, but I was measuring from the soil line, not including the pot.