I decided to put together a cardboard prototype of the louver retro fit. This isnt exactly what the final product will look like but its an idea. A section was good enough to get an idea
I did manage to make a V channel in this prototype. It may or may not be in the final product. I tested out both a V channel and a single vertical strip down the middle.
In the final products, the baffles /end plates /vertical strips will be made out of aluminum. The sides will be made out of wood. Preferably window/door decorative trim. The entire thing will be painted white. But I may leave the wooden sides their natural colour if it looks good.
I may also reduce the thickness of the overall product and make it more inline with the fixture body. Meaning reducing the depth of the louvers. and sides and maybe going from a tapered sides to flat inline with the wrap fixtures endplates. I may also add holes in the wooden sides to allow side light to escape.