Maybe I'm not understanding what you mean speedhabit. The bottom of the cabinet is 4' tall and the top for vegging is 2'. If you mean I should use slim 6' tall spaces side by side I don't see that working as well at all. For lights I have a choice of 8 4' flouros or a couple 250's or a mix, and for veg I have 42w cfl's and or 2' flouro's.
I've grown more than my fair share before. So far always indica heavy though, so maybe you're a sativa grower. I have both types this run, but the sativas will probably be left growing in a closet.
I don't even need the stealth really, it's just that I had this cabinet sitting here right beside me for a couple years that I never got around to doing anything with and have thought about it for a while. (mainly every time I see posts about pc case grows and other tiny things like that and think this would sure be a better idea for a lot of those folks if they wanted to go to this much effort)
Also I just recently started growing again after many years away from it. If (knock on wood) my main grow ever got stolen or had a problem I'd still have what's inside this, and I like the sound of that added backup.