I installed it on a 1/4 scale supercub. I built up a base of balsa and filler, that the lens cap is tack glued to. I then wraped a 1/16th inch strip of foil tape around the base of the lens to hide the joint and make it look like a metal bezel-if that makes any sense. The best idea I can give you is to look for some pictures of rotating becon mounts on GA aircraft to get ideas of whta you are trying to duplicate.

Hope that was of some assistance.

Dave