I dont want to ''hi-jack'' Josh's post, so short and sweet here ya go....
DIY-yes
Non guided- yes
Semi guided/supplied drop camp -yes, in some places
Fully guided- doubtfull if you want a good area with big bulls, but possible if your not picky.
Are you going to be packing your ''Howitzer?'' Just kidding, Ive been following some of your other posts so I thought Id throw that in for laughs. I love my 300wby eventhough some of my buddies think Im way over gunned.They have thier opinions and I have mine, and a dead elk is what im goin for. As long as your happy and proficient with your choice of caliber, you will certainly have enough firepower with either the 338-378wby or the 460wby to get the job done. Good luck on your hunt/choice of outfitter, and your caliber choice.