Drilled out the #6 screw holes to 5/32 through the lens and counter sank those holes to accept the wing skin dimples for the #6 screws. Countersank the two aluminum attach bars for AN426 AD3-3.5 rivets attaching the nutplates. Added some two sided glue pads to cushion the attachment of the lens to the aluminum attach bars, preventing possible cracking from the pressure. The lens is done and ready to install.
Referred to the older right wing lens to be safe.
So this gets inserted through the opening and twisted, fenagled into place.