Hey guys, please find below a picture of our cast iron alcove tub. As you can see we have ripped pretty much everything out (tile is on it's way out now) but would like to salvage the tub. However I REALLY want to tile the tub apron/skirt. A number of contractors have said they can do it by building a small wall onto the front and tiling on to it. I know that the ideal situation is a drop in but can this be done with the current tub, and will the wall have to be very thick?