Just had the rerun of NYW where they built shop accessories using
commercial laminated lumber.
SFWIW, you make a lot of these laminations building a boat.
A 4x8 sheet of 12mm, 4 ply, CDX is your friend.
Fill any surface voids proud with epoxy fairing putty, then sand flush
Use a 2" x 2" x 1/8" x 96" aluminum angle as a straight edge that the
CDX pieces get clamped to while the glue (TiteBond II) cures.
Cut CDX proud by 1/4"-1/2", then trim assembly to size when cured.