What season are you hunting?
Have you scouted? Why are you optimistic about the deer and not elk?
Are you going to focus on one species at a time, or hoping to hunt one particular spot for both?
Would you rather kill an elk or a deer?
Are you car camping or packing in? Reason I ask is because "go as far back in GMU 181 as possible" means maybe 3 miles at the most, making packing in not totally necessary or even all that practical.