The two that are going to cost you some money are a good tent or bivy and a backpack. Make sure you take plenty of time before you buy them to ensure they will get the job done, as life in the back country is miserable if the weather turns sour and you can't get out of it for a good nights sleep along with getting everything you'll need in and out again. Therefore, make extra sure that the pack you get will be able to safely carry a good load of meat. Elk take at least 4 trips to the trail head if you're by yourself and probably 3 if you have a buddy with you.