If you are talking about a laminate like formica, I dont know if it is rated for a shower. It certainly needs a very smooth and flat substrate. I dont think cement board would take contac cement very well.
By the way, the 15 pound felt would go UNDER the cement board, not on top.
Have you looked at the surrounds from Lasco, American Shower and Bath, MAAX, Silestone, and Swan. There are lots of things available.