Here's my opinion Mark,
These are not what you would call rare, and they do come for sale regularly. They are also reproduced too. That being said, they are still cool and someone will buy them, how fast you want to sell determines the price IMO.
+$500 you may have them for awhile.
$450 Fair price, someone will consider the condition and be happy at this price.
$400 and lower.......bet you sell them today!