Money isn't really a problem, not saying im a millionare, but I've been stuffing my piggy bank to the point its full...
One of the problems is that you haven't said is how you want to use it.
As an example, I have a Les Baer .308 Sniper with a 20-inch barrel and the Enforcer Muzzle Brake.
I wanted a gun strictly for range use and shooting at long distance metal targets for tactical precision rifle competitions. After looking at a number of semi-auto rifles, I chose the Les Baer as it is made for precision shooting, and comes with a 0.5 MOA guarantee.
I had to wait nearly 10 months to get the rifle after it was ordered and it came with two 10 shot, 100 yard targets that were shot and signed by Les Baer - the "large" group measures 0.375 inches...nearly a single hole.
I put a 3.8-25x US Optics scope on the rifle. The setup makes 600 yard shots easy and 960 yard shots (the limit of the range I use) doable when conditions (crosswinds) are favorable.
It is a spectacular custom rifle.
All that being said - it would NOT be the rifle to use for hunting of any type as it weighs 13.5 lbs. with the scope and is a handful trying to shoot it unsupported. It is really a single use rifle for civilian use - gun range target shooting - and would be hard to surpass for that use.
You have to first figure out how you're going to use the rifle. Once you do that, you can start eliminating manufacturers.
If you said, "I want to go hog hunting" - that would point you at a couple of manufacturers and may get you out of the AR platform completely as the FN SCAR 17 would be a real contender for that type of use - and you actually might want to change caliber to something like a Wilson Combat in .458 SOCOM.
If you wanted a hard use "battle rifle" in .308 that would point you at KAC, LaRue, or LWRC.
If you wanted a "general use" .308 then you'd be better off looking at DPMS or Smith & Wesson.
If you wanted a "light weight" rifle then you'd probably want to look at Wilson, JP Rifles and perhaps Noveske.
So, you really need to better define what you want to do with the rifle as that can help narrow down choices to specific manufacturers.