I have a pair of large (BSL 305-370) 9-10 Barons lying around, 110mm brake, never used. I got them from a friend for super cheap along with the skis and skins, and ended up having to buy a pair of smalls to fit my boots.
Anyways, I was looking to sell them recently and I see that there are no heel plates in the box -- the part you lock the binding into when you're going into alpine mode. Whether they got misplaced when my friend owned them or when they were in the ski shop for a few days, I don't know, but I'd love for someone to use them rather than to just throw them away when I move.
I'll sell these for whatever it costs to ship them to you. Some pics here: