I'm sorry to say that this is a very difficult game to find. I think your best options are to 1) utilize the BGG Marketplace, though it looks like you'll have to be willing to pay international shipping atm. 2) ebay. I looked a little while ago, and there's a used copy up for bid for $99. 3) pay the super-inflated secondary market prices on Amazon.
Imo Z-man did a huge disservice to Mr. Ciscell and board gamers everywhere by not printing a lot of copies of this. I keep my fingers crossed he'll find a publisher to get a second edition made.
I'm sorry I can't be more help.
edit: Math trades or just reaching out to members of local board game meetups would be other possible options to explore.