Finally got this installed over new acrylic panels and it looks great!  Because of the acrylic panels and Kerdi backer board I did NOT use the supplied anchors to hold the braces. Instead I ensured there was a header board where the braces were going to be located. Also needed to ensure that the plumbing outlet was small enough to hide behind the panel. So lots of pre planning that at some points got a little nerve racking, but alls well that ends well. 

If I could make a recommendation to Vigo: have the lips of the bracket flare out more because the braces on the unit are set slightly back so it was nearly impossible to have them grab when sliding down. I had to loosen the brackets from the wall which meant it was grabbing very little into the wood headers and had to add little shims to make the bracket stick out more.