I wasn't sure how tall it would get because of the 5g pot, but it ended up fitting in the tent with room to spare.
Despite some streatching, which is my fault, my MI5 has out grown the HPS in the tent, so I had to get a 300wt CFL to hang in there.
That MI5 is about 46', but it looks like it's going to be some fluf. I considered chopping it, but I plan on making some hash or butter, and i'm sure it will come in handy.