First off, I wanted to compliment you on your nice attempt with stealth grow.
How are you setting up your lamp? Are you hanging it or mounting it? If you are hanging it, what did you hang it from?
Judging by the edge of your 70w hps in your third picture I think we are using the same exact model of light. Mine is 150w hps though, and I can't figure out how to hang it!!! I wired it and had it hanging down as side lighting, but can't figure out how to suspend it over my plants.
Is this what your lamp looks like?