After the oil cooler louver assembly and screen backing (radiator) elements were finished, they were airbrushed with KlassKote aluminum and flat black and cemented in place. To represent the aluminum intake cover plate, a 1/64th ply pieces was cut to shape and the entire backside brushed w/ 30 min. epoxy to fuel proof it and then all edges were cemented in place with C/A. This was plenty strong enough and the remaining depth on the exterior was covered with carpenter's white glue and it too was edge cemented with C/A. Once the outer thickness which protruded beyond the surrounding pylon was sanded flush with everything, I decided to cut the intake porthole after everything gets resined, glassed, primed and sanded in order to keep all the sanding dust and slurry out of that inner area. It will get cut and plugged w/ wet tissue just before the final exterior color gets sprayed. Time to move on.