Do you still have this? If so, would you be interested in trading straight across for a Canon EF 70-200 F4 L USM (not IS) and Kenko C-AF 1.4X teleplus pro 300? I've also added a third-party tripod mount (the 70-200 didn't come with one).
No lens cap and way back when, when I first purchased the lens, I failed to buy a filter to protect the front element. There are some small scratches on the edge of one side of the 70-200, from being put front element down in my Domke camera bag.
It's an exceptional lens. I use it for outdoor sports (mainly Texas Friday night football), birds, and flight activities at the nearby Naval Air Station. No flare at all from the tiny scratches.
I'll send pictures if interested.
I'm moving to Uganda in January. I'd originally figured on taking the 70-200 but think I should take something a bit more compact and unassuming.