I painted the top and underside of the valance Polar White. Then installed the triangle brackets that provide the permanent support for the valance. Next fascia and lights.
I got a little worried about whether 1/8″ hardboard would make the 8″ radius curve around the northeast corner of the valance. But I tested it and it should work no problem. I plan to use install the fascia two sheets thick. That way I will have smooth side on both sides. The outside face of the fascia will be painted Stealth Jet. I can’t decide if the inside of the fascia should be Polar White or Stealth Jet.
I think I’ve found my lights: slim T4 fluorescent lights like these available at Savio Lighting. The fixtures are 3/4″ wide and 1 1/2″ deep. They come in various lengths. I’ll probably get four 24W 34 1/2″ fixtures. I think I’ll get the 6400K color temp. These lights are linkable. The biggest drawback to these lights I can’t find a local source for bulbs.