My soaker tub is set up identically to this. Instead of my wrought iron shelf, I would love to do a built in. I've also been torn with beadboard vs. tile for the front of the tub. Turns out I love the beadboard and its cheaper!
Great idea for stock cabinets: Annie Sloan Chalk Paint Old White with Dark Walnut Glaze and wax. Builder grade, oak, bathroom vanity remodeling for master bath. I love Annie Sloane Chalk Paint.and the waxes.makes for awesome refinishing.