Looking for the Nauticam 36162 port for the Olympus micro 4/3 12-50mm lens. I have the gear. I can buy outright, or trade in part: Olympus 14-42ez lens, gear, matching Nauticam port, CMC macro lens, WWL-1 lens, bayonet mounts, double bayonet holder; Olympus 9-18, gear, Nauticam 4" port (marks...