I think you're better off using peel ply and an absorption material that is layed flat with no creases.
(Crease the peel ply, absorption material or the vacuum film for that matter and it will show up in the surface of the laminate.)
I think the method I used will give you the lightest strongest and truest board.
Taking care with the peel ply,absorption material and vacuum film will minimise the finishing you may have to do.

To make a board lighter and stronger you would probably have to go to a near hollow board with pre-preg carbon.

I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!