I'll second muley699's comment about terrain. Underestimating the enviroment is often the first step toward a tragedy. Enough said about that.

Antelope are generally pretty easy to hunt, and you may find some mule deer sharing the same range.

Elk are tough. They live in some pretty nasty places. Sheep are even beyond that in difficulty. They'll tax you to your limit.

You can be successful with a DIY hunt, of course your chances are often lower, but that's often due to the artificiality introduced by outfitters who lease private lands accessible by vehicle. I'm not a fan at all of hiring "guides" who simply lease private lands and provideshooters withexclusive access to animals seeking shelter from the higher hunting pressure on public lands. Outfitters specializing in hunting public "Wilderness Areas" are a different story.

IMO - the knowledge gained by DIY hunts outweighs whether or not you have something to hang on the wall, and any animal you harvest will mean more toboth of you. But, you might consider trying to hunt your first season with an experienced western hunter.