Main equipment areas you should study up on/know what the scoop is:
tent
sleeping bag/pad
pack
equipment related to dealing with a dead critter (and the how-to related to it)
food and water treatment/filter
Tons of other items (a small number of first aid items, for example), but my biggest categories are captured above- others will chime in with other things. When people start giving you too many suggestions, go back and re-read the GIF article by Aron.
Then there's the how to hunt elk piece of this. Between here, bowsite, archerytalk, elk101, and elknut you've got more reading that you can do between now and then. Move until you locate elk. Figure out if it's best to spot and stalk, call, or sit water/wallow. Also, go into the trip in great shape- unit 54 has plenty of country that'll put a whoopin' on your butt if you're not in great shape (even if you are in great shape). You don't need to be a marathoner, but you better not be a couch potato either. Lastly, no matter how much the country and the elk kick your butt, remember you're really lucky to have the opportunity and HAVE FUN!