Electric steps for RV that did not come with them

I think you'll find that due to the design of your coach that the permanent steps are likely already low enough to provide easy entry and thus would probably be too low to add another step. They might hit the ground a few times. I would find the specs of an electric step and see what the extended height is. Is there a reason you want to add them? Are the fixed steps too high? Perhaps a portable, single step, stool would be easier - and cheaper.