I would shoot with 100 speed film..........sounds kinda wierd but, you can shoot with a slower speed film and get better results on situations like this.
I would put the N80 into the "A" mode - Aperture Priority. Let the camera determine the first exposure and then bracket some exposures. You will want to take the photo at f/5.6, f/8, f/11, f/16, etc.. to see what gives you the best result........get ready to burn up a quick roll.