But you should already have a NEF Single-Shot in 300WinMag before buying all of this.
(Seriously, OP, many of us have "been there" before. Hell, I had a pile of Y2K crap that I never used and would never use. I think my Bug-Out backpack weighed 60lbs and looked like the backpack the kid takes on Schoolhouse Rock. While 60 is not a big deal, it is when you've NEVER CARRIED A BACKPACK BEFORE! Check out if things are important/necessary before dropping a bunch of coin on something that'll sit in a closet for the next 30 years. YMMV. Good luck and ultimately the customer is always right.)