if there just blinkers they may not project right. you would have to get some reflective material to put in the back ground. like foil tape for duct work or something. might look pretty cool once there done...
the only other prob i might see is that actual head light bulbs might get too hot. the tub that the bulbs go in might be too shallow and could possibly melt or catch fire.
not shooting you down man...just looking ahead at possible problems.