I just placed this beautiful lens up on e-bay (description and pictures below). It is in immaculate condition and was overhauled by Duclos lenses. A really fair price considering the overhaul. If anyone from REDUSER purchases the lens with the current "Buy It Now" price, I will give them a $200 refund off that "Buy It Now" purchase price (so $3,899). Or, you can take your chances on no one swiping this beauty up, and wait until auctions end to see if you can luck out for the price of $3,699 (no additional discount given there, obviously).
Note: I actually don't really want to sell the lens below $3,899, but ebay now makes you list the starting price at 10% lower than that of the "Buy it Now" price. So, I will accept that price if someone hold out until auctions end... even if I think you are getting a steal at $3,899 as it is.
My Ebay link: