I have an excellent example of this fine lens for sale.
Used it on my 5D, and it's a very sharp lens.
Glass is perfect, I don't see any signs of use on the barrel; the hood has some slight marks if viewed at a certain angle.
Includes original box, Canon caps, and Canon lens hood.

$300 plus shipping, Paypal fees included.

I'd also consider a trade+cash on a 24mm TS-E lens, details can be worked out.