I think you'll find that selling them is not illegal, as they are from a tv source, if anyone tried to say it was illegal then so would be the selling of any episodes on video tape. It's exactly the same, just a different media. As 75 of the episodes aren't available on video or dvd, and most of the specials and pilots aren't available anywhere.
In reply to what i would charge, i have already said make me an offer. I have never sold a set, but bear in mind the amount of time to find every episode, transfer to disk and edit to try to make them better.
'trading and duplicating for a friend' is not nicer, you don't get anything for nothing in this world, and as i don't know anyone here then i can't call anyone 'friends'
The set can be viewed on dvd players and pc's.
If nobody is willing to make a sensible offer then i'll go elsewhere. I am not willing to give the set away or take blank disks.
C'mon guys, am i wasting my time or what?