Well, in Greece only two things were published regarding HeroQuest: the core Game and Kellar's Keep. I will try to provide scans of the box, Morcar's screen etc although I think most of it has already been scanned and upload into various sites and forums.
Apart from that, I also have the Swedish version of the core game which has different box artwork and the Brazilian magazines with the published quests (I saw those scanned on the Secret Door section).
But anyway, I'm always on the lookout for rare stuff. I will be scanning the Greek leaflet/advert that came with HeroQuest, it's something that doesn't go around very often.
My collection so far can be viewed here : https://drive.google.com/open?id=0B-GtMnYhi57iSmk4cFUwS3FEQ2c
Anything I can help you guys out, I will be more than happy to do so.
Again, thanks for a warm welcome!