4Ground do sell a boardwalk base for that kit which would raise it the desired amount. Most of the other Wild West kits they do actually come with the boardwalk base, just so happens that one doesn't.
As to Malifaux miniatures being Heroic, the one I used in the picture is 37mm high, not counting the base, so it's closer to Heroic on steroids. At that scale finding any scenery that's not specifically designed for Malifaux that comes close to scale will be tough.