This was the method for removing the inner skin and honeycomb. Dremel the outlines. Dremel the edge of the flap honeycomb. Drag a 1" putty knife between the inner skin and outer shell, careful breaking the honeycomb connection. Used a fibre wheel on a drill to remove the remaining honeycomb and prepare the surface for shaping. The vacuum did a bang up job of almost eliminating the dust from the dremel.
