i have a cheap neoprene lens bag from ebay and a cheap lens hood from ebay i store this lens by puting the lens into the lens bag mount side down so the front element face the top then pull the draw string up, the cheap lens hood then fit perfectly around the bag and front element section providing a hard shell around this vulnerable part.
Not a bad idea. Unfortunately, the kind of damage I sustained came from the inside, not the outside. There's an internal part that bangs up against the focus barrel, warping it out of shape. That prevents the lens from being focused using AF or otherwise. It's stuck within a very small range. Those who have had this problem know exactly what I'm talking about. So while I really like the protection you listed here, this lens needs a little TLC, particularly with how you store it.