Hard to say. Most of these Fury games have 100 copies which is not very much and makes these games rare. On the other hand, some of these games are available for download (see Fury Unlimted website). I'd say around 125 USD. Like with any collector item: Depending on how lucky you are and how much you announce it you might be a lower or even much higher price.
For overlays I have no idea. There are repro overlays available with reasonable quality and prize but there is some demand for original overlays, too.