I just glanced at the print. It looks like he had 1800 total watts of tungsten bulbs. I've been trying to scale around what the old Elwoods provided. My understanding is they used either 300watt or 500watt bulbs. With that in mind I think 100 to 130 watts of fluorescent will get me into the ball park. I'm also hoping that by using a 5100k bulb that I'll have less wasted light. The red light the normal enlarger bulb puts out is just not doing much good.
The heat problem is they don't even reccomend using a 24 watt bulb in an enclosed space. They were supposed to get back to me but that was last week. Right now I'm thinking of adding some 12volt fans. Computer fans maybe. But a sealed box would cause less problems with light leaks -)