Well, I don't know if I tottally agree with you Mccoy.  The plate is textured and the mounting screws are hidden, it's not just a piece of sheet metal with exposed rivetts. Don't get me wrong, it's not as pleasing as blending the trackball with the surface but depending on the situation not a hideous eyesore.  And at this point, I don't see a ton of options if I'm going to do what I'm trying to do.
 Again, I would be interested and would rather mount it at the bottom, I've just searched a ton and can't find a good tutorial on how to do this.  I'm using a half sheet of plywood.  Any suggestions.