Honestly, all these "builds" people are throwing in as ideas just don't make sense here, IMHO. Buy this action, then find that barrel, locate this other trigger, get yourself this special stock, likely pay a 'smith to do at least some of the assembly...oops, sorry, the "build".
To me, this kind of stuff makes sense for the diehard accuracy nut, who handloads every round as though he were cutting and polishing a raw diamond. Guys who don't merely "reload", which implies they just want cheap ammo (like me!)...but rather "handload" because every 0.1MOA is important to them.
If you aren't in that category...if you just want to shoot a bunch, and want to buy ammo that gives you great accuracy, without actually jumping into the bottomless pit of handloading for the ultimate precision...why waste time and money with hardware that is targeted at that market? What is the point of putting a $1000 or $2000 chassis on something like a Rem700SPS wearing a $100 barrel? To look cool? It may look cool to some, but to the real diehards it looks like what it is, i.e. lipstick on a pig.
Don't get me wrong; that "pig" will likely shoot very well, and will serve you well for most hunting...but a budget action wearing a factory barrel will not shoot any better with a fancy stock. It might make it slightly easier for
you to wring out whatever accuracy it has, but it won't make that $100 barrel into a $1000 barrel.
This thread is going on two months old. Stop agonizing over it; buy something, shoot it, play with it, decide if you like it. If you do, great! If you don't, you will have learned more from the exercise than you ever will listening to 50 people with 50 different opinions...and you will have had a bunch of fun shooting something new for a couple months, something you can always sell and move on to something else. Shooting is more fun than internet debating. You're buying an inanimate toy, not a new heart valve.
You're asking for the Ultimate Rifle. The mere fact that you need to ask the question virtually guarantees that you won't find it the first time...or the second...or the 10th!...because the Ultimate Rifle is different for everybody and the only way to find it is to buy and use a bunch of Not-So-Ultimate Rifles to refine your needs and wants. Fortunately, it's a pretty enjoyable process.
There ya go...another opinion!