I hear you on the Danner quality dip. For wide boots in a 16, check out the Keen Targhee II. They’ve got a roomy fit and decent durability. Also, consider checking out custom boot makers if you're open to that.
I usually bring about 3 TAG bone-out bags for a bighorn. Five seems a bit much unless you’re expecting a really heavy load. Better to have a few extras just in case, but 3 should be enough for most hunts.