Thanks everyone... I think it's almost done. It's actually almost tripled in height!! I knew it was a stretcher.

I actually got an air-cooled hood so I'm not too worried about heat... more light intensity! The 1000W even at 12" generates 300% of tropical sunlight according to this chart! So I try to keep it no closer than 12"!! I should be good as long as it stops in the next week or so! I got about 6" of headroom left to raise the light.