This deck is all about movement, and dudes that are power houses with a horse, especially with Yagn's. Elander can also pull some very cool tricks with dudes becoming gadgets. This deck may take a while to build, but has huge potential, using your horses to send dudes home booted, start unexpected shootouts, and have the movement to push for the win.
The biggest problem this deck will have is if you get locked up with too many expensive cards in your hand, and you keep losing lowball, your economy could tank. William can reduce half your deeds costs though, and your horses will get a once per turn discount.
I hope this gets some ideas rolling for the shiney new spurs.