You might want to try posting on the TrekPropZone. (I think they have an “I’m looking for” category.) TheFleetWorkshop is more of a knowledge-sharing site than a marketplace and other than group buys on parts, we don’t generally allow folks to advertise stuff for sale. A post asking for helping tracking something down like this is totally cool though, and I hope someone here can give you a pointer or even PM you and work out a trade. I only mention it because I was thinking perhaps you might have more luck on the TPZ, eBay, etc., since people tend not to look here for that kind of thing.