I'm over in Afghanistan. One of my gun dealers had a canteen with pouch and a mess kit this last week. Both were used but nothing wrong with them. A little fading on the pouch from having been used, and that was it.
I think he wanted $20 each. You may find cheaper out there though. I'd also have to check my Kyrgz connection as well. She had a brand new canteen, but i'm not sure what she wanted for it, or if she still has it.