debaric said:I wouldnt recommend it at all just because the ballast is actually pretty heavy and where would you put if you did this.
The ballast is not heavy at all. I think it only weighs 8 ounces, that's for a 2x55 watt kit.
Like I said before, you could get away without mounting it to a hood. Just do as others have said and screw the reflectors and bulb clips into a 2x2 piece of lumber. You can attach the ballast on the back side of the wood if you don't want to see it. Or right on top since you're going for the inustrial look.
I do still recommend covering the open ends of the reflectors with something as they really do throw a lot of light.