Thanks for all the great replys. Just to be clear, I dont have anything yet. My friend has the rifle/ammo combo that is shooting better than .5 MOA. I actually just talked to him, he said his best group was 3 shots, 1/3 of an inch center to center, at 100 yards using 168 grain Federal Match Gold King. Out of his Remington 700 SPS Tactical from a bench, with a bipod, and no modifications to the rifle or stock.
The 700 5R looks like a great option. It has a 24" barrel instead of the 20" of the AAC-SD. And from what I've read, the 5R will easily out shoot the normal production 700's. However the 5R does not have a threaded barrel, and at this point, I've decided that is something I want.
So maybe I'd be well served with the Remington 700 SPS Tactical AAC-SD, with a better aftermarket stock, and depending on how the trigger turns out from the factory, I can always swap it out with a Timney... How does all that sound?