another cheap lighting tool that may be useful to you is the simple white bifold closet door, mount yourflourecent tube inside the V of the standing door and by opening or closing the v you can widen or narrow the strip of light it throws, a strip of gaffer tape will seal the seem where the door hinges if needed.
these striplight banks can then be used to seperate your subjects from the background from behind or to fill in shadows from the front.
they won’t cause flair in camera if position properly.
