i'm not sure what gen the Nano's are (not the metal ones). I have a black one with the box and everything that came with it and the agent18 hard case. PM me if you want it. it's a 2 gig, and there aren't many (if any) scratches on the chrome.
I have a 20 gig 4th gen... I used it while working out. Its in good shape minus some very minor scratches that most used ipods get from being in someones pocket. PM me if your interested...