Value of effects models

Hello, I am new to this forum and was hoping to get some opinion on selling film effects models. I worked at ILM for some years in the 80's doing miniature mechanicals for effects shots. I have maybe half a dozen models and parts of models that I am tired of carrying around and want to get rid of. I have no idea if they would be worth anything to anyone and this seemed a place to find out. I realize this forum is about replicas and what I have are originals but hopefully it is still relevant. I looked on eBay and found page after page of movie props for sale so I am not optimistic what I have, like the armature from the Willow transformation scene, is worth anything. I could post some pictures if that would help.

Thanks,

Vulcanelli