Hello! I am the second owner of a 135mm f/2L USM which has been well cared for. I have only used it, non professionally, once or twice. Great lens but does not get any use. I just also realized that I have the box. It comes with bag, box, warranty card etc. $800 shipped, paypal.
I have 100% feedback here and on eBay. If you have questions feel free to contact me.
PS - it will ship from Michigan