I bought one off eBay from a seller in Russia. I see they are still selling there and offer hexes or offset squares. Choice of material too. I think it's the same seller. Mine came in a nice heavy cardboard tube with a carrying strap (cord) and plastic caps for the tube. My wife hates when I pull it out to play because the choice is the floor or the dining room table.
I have this map as well. Weeds did a review on it a few years ago. Warzone was the name of the maker I think. Can't remember.