RE: jaguar hunting?
I do not know of any guided jaguar hunts available. It would be great to hunt a jaguar although they are currently not importable into the US. Some of the best hunting stories that I have read are about hunting jaguar in Mato Grasso. If you get a chance to read about a man named Sashmiel(sp?) he was one of the most famous tigeros to hunt jaguars with a spear. He was taught to hunt jaguars with a spear by an old native hunter. I believe Capstick's book Sands of Silence has a chapter on this man.