Those are pretty uncommon lenses you are after there. Especially the COMMAND lenses you mention in an older post, those are big $$$. Got some cross-over collectors here, but facebook has many groups dedicated to traffic lights. When I needed some smiley lenses in a hurry, I just posted in there and had multiple people help me out right away. Traffic Lights, Signals and Signs Collectors - Buy Sell & Trade is a good group but many others.
I know, I hate facebook too, but using the groups is a totally different experience.