I'll throw in a thought or two.
First off, I don't think it's possible to throw too much money at a barrel if you're serious about accuracy. This is even more true of a carry rifle than a bench gun (unless you shoot competition) since you won't have that extra meat to stiffen it up. Taylor the twist to the bullet you want to shoot and get the heaviest contour you can tolerate carrying.
Since this isn't a competition bench gun, I personally feel that any action, properly bedded, squared, tuned, lapped, will do the trick. Mostly, you have to have that work done on it!
Nightforce scopes are great. I have an NXS and it's wonderful. That said, I also have a Millett 6-25x56 with side focus that was about $250 delivered (close out sale from Jerry's) that will do the trick until you can afford, or find you need, better. I have a Sightron that's awesome too that can be found for $800.
I think any stock, pillar and glass bedded will fit the bill if you like how it feels. If you don't bed it, you're wasting money on a good one.
Last and IMHO, if you don't have what it takes to reload accurate ammo, I don't care how much you spend on the gun, you won't realize full potential accuracy. Competition dies, a really good priming tool, a good- square press, a good scale, taking the time to properly prep the brass and having the tools to prep it so you can load the most consistent ammo possible will make the high dollar gun worth the time and money. Oh, and did I mention custom building a load?
Take care, Coyoter