Reynaud magic stands clone

[eugenius]

I'm thinking of making a clone of the Jean Marie Reynaud magic stands ... these are a pair of stands that attenuate the midbass hump of most bookshelf speakers and extend the bass at 50Hz +3dB.

If somebody has access to a pair of those stands, can you verify those plans for me?

I also could use some tips, like what do I use to join the panels together with no vibration and no ugly screws showing, and what kind of black paint should I use on the mdf to provide a flat matte almost rubbery finish that will not scratch over time and is easy to clean/wipe.

Here's the plans I have: