For a one day hunt, flying in, and hunting an unknown area, I think you are taking most of the hardware you and the BIL will need. Since your BIL is local, I'd suggest that you let him take the lead on finding a place to hunt. Trying to nail all the details down from the East Coast will be difficult. Plus, he can possibly get some face time with the owner of the property or a guide and go out and physically check out the hunting area. Also, while prairie dogs are not exactly game animals, you need to check the license requirements for an out-of-state person, since most states require a license to hunt any species.

I've never used these folks, but they may be a good place for you and your BIL to start your search:
http://www.timberlinehunting.com/hun...irie%20dog.htm