globally moving modifier to bottom of stack, collapse to

does anyone know if there's a script out there that would let you select a modifier used throughout a scene and move it to the bottom of the stack of every object (either in scene or selected) then collapse to? I'm using the assign vertex colors tool on a high poly that's comprised of many pieces. only thing is i have turbosmooth on most pieces that needs to be turned off but not deleted before assigning vert colors, otherwise it takes far to long to finish assigning colors. I'd rather not have to go through every single piece and manually move the vertex paint modifier to the bottom of the stack before turning turbosmooth back on. Any help is greatly appreciated.