Much of what has been said here already is true. Because of the number of tags and deer migration, it is rare for a giant to be found, let alone harvested off the Books these days.
There are very few bucks larger than 160" killed each year, and from my experience and what I saw going out in trucks last year, a lot of smaller ones than that.
I took a 26.5" 4x4 that scored exactly 160 0/8" on the rifle hunt last year. I had only seen 3 bucks that were better scoring during archery and muzzleloader, but my buck was symmetrical and my widest buck to date. I couldn't lay off the trigger.
You will probably have the most fun you've ever had on an archery hunt out there. You will see more bucks than you can count. And she will get to chase/stalk as many bucks as she can handle.
180" plus bucks are very rare. While you can get "away from roads", the deer and bucks move all over that country. Had some friends hunt a full week of the archery hunt in the Roadless in 2014, they hiked and camped in there away from everybody. They never saw anything better than a 140" buck. Came out and killed two 155-165" bucks 4x4s in two days just glassin from the Divide Road.
It's not the Paunsy or the Henry's, but she will have chances at a lot of decent deer. I would recommend you stalking bucks that have some age, even if you don't intend to kill them, just for practice. Then if you do have that once-in-a-lifetime chance, she'll be ready...
Keep us updated..!!
"Therefore, wo be unto him that is at ease in Zion!" 2 Ne. 28: 24