There's getting to be a lot of options out there for a chassis, only you can make the call on what's going to work for you.

AICS is nice but on the heavy side if you're going to be hiking around with it, but not sure what the weight will be on the new version just released.

The X-ray looks like a really nice option at a reasonable cost if you don't need all the bells and whistles.

On the higher cost side but REALLY nice especially for a rifle that will do some hunting duty is the Manners with the mini-chassis. Pick your stock, mount the barreled action in the mini chassis and drop it in the stock. No bedding required. With their new Carbon layup you can get them down to about 3.3 lbs with the mini-chassis IIRC.

XLR is out there as well.