Pulled all three panels off of the aero cap so I can revise them. Going with light plywood sides and sculpted multiple layers of Foamular and a Tyvek cover fer the hatch. I might add some Foamular to the sides on top of the plywood so I can shape/sculpt the sides. Looking to make the hatch setup more of a cap setup versus the ridge setup from before and radius the edges of the hatch so it will be more aerodynamic. Gotta move quickly before the next storm front rolls in tomorrow.