The answer to your first question is, I don't think so. Even if it would, you probably wouldn't want to because the OEM running boards on the WBH are a different color than the cladding on the cladded models. The running boards which are made for the cladded models match the color of the cladding.
The answer to your second question is yes, as long as you are talking about the OEM version. The OEM part # for ss tube steps is the same between the cladded and uncladded models.