caravelle step light

I wondered if any of you have changed the standard front door step for a caravelle one which takes the large oval light, I am after the part number of the left and right step without stainless steel insert (Genuine VW) I am about to fit a wiring loom which pauly kindly provided for the step...

Does anyone know if the T5 caravelle side steps and tailgate threshold is compatible with the T6? Im going to be fitting the caravelle rails and need the deeper steps but can only find ones advertised for T5's also anyone know the best place to buy new ones other than a VW dealership? Thanks