[goose's girl]

Hey, I've done something really stupid. As everyone knows (that has played fairly far into the game) you start to accumulate a bunch of junk that is really cool but you don't need it and it's too expensive to sell. So, I started to get into the habit of selling stuff really cheap or just throwing it down any old where. Problem is -- (i feel so stupid) -- I think I threw down Sumner just any old where... and I don't know where. I've checked almost every trader in Vardenfell to see if I sold it for cheap but no go. Does anybody know if there is a way to go back and fix things? (ie like you can go kill Vivec to undo some main quest screw ups)