I've had nothing but good fortune using Cabelas and Hodgeman breathable waders..($150 price range).
Chota wading boots ($60 range) are my choice as well.
Besides a couple of pinhole leaks - easily fixed with duct tape on the inside of the waders - no rips, tears or leaks.
Simms would have to attach 4 wheels for me to spend the outrageous kind of money they are asking. (and no - I don't need a ZIPPER either !!!)..