The area where my projector screen is going currently has two 6" Joist mounted recessed lights approx 3ft from the wall and what I am trying to do is create a 3 to 4" drop down ceiling from the the screen wall about 4ft out from the wall and across the entire width of the 120" screen. I'm doing this as I do not want to paint the entire ceiling black but am going to cover the "soffit" boxout with velvet which i think will look pretty sweet and add some dimension instead of just a straight black paint line across the ceiling. Now I will have a a 3 to 4" gap between the lighting fixture and the bottom of the soffit. I was thinking about using some kind of piping of either pvc or even metal. Any ideas? Basically I cannot remove the existing light cans, be sweet if they were remodel cans than I'd be in business.