World Stealer help.

Hey guys, I've recently started a huge project of a EXACT DayZ Chernarus map. Eventually, it will be a DayZ server, called DayMC. We've put almost two months of work into this map already, and we want to know if there is any way at all to stop someone from logging on with a World Stealer, and running around the map just copying our hard work and getting it for free. We have a couple thousand people who want the map (Between the two posts we have made it is already up to a total of 10k+ views) So I believe someone will try and do this. If anyone knows a way to possibly stop them from doing this we would be very grateful. Thanks.