1) The first thing I'd do is see if your dealer or Fenix can help with a warranty etc.
2) If not then I'd check to see how much the lens is. I once bought one from Sunwayman and it was $9 for the lens + shipping and it had to come from China......but at least I got the light fixed.
To get the head off of a Fenix you will need two rubberized strap wrenches and its hard has heck with the thread locker on it. But I've managed it on 3 PD32's without any damage. The reflector and lens is then accessible......as is the LED for a swap :thinking:.
If it turns out that you can purchase the lens, maybe what you do before you buy it is attempt to get the light apart. Because once you get the head off, you know its fixable if you can procure a new lens.
3) You could always offer it for sale on CPFM or Ebay as there is someone out there that can fix it.........and thus they'd buy it in the "as-is" condition.