I never had an enormous collection, but I am willing to trade all I have for the original four action figures and their corresponding proton packs. The ghosts don't have to be included, packaging not important.

All I have can be seen in the picture (which wouldn't load) Please email me to see it. Please let me know if you want more details.

Here's an inventory of it:

Egon: Fright Features
Ray: 1st Series (some paint wear). Proton broken
Ray: Slime Hero
Peter: Fright Features (feature is broken)
Peter: Super Fright Feature
Peter: Slimed Hero
Winston: Slimed Hero
Louis: Power Pack Hero
Slimer
Dracula
Bad to the Bone
Wicked Wheelie
Ecto 1A with box