I have a bathroom that is all plaster with a window half in my tub area and half out in the bathroom area. I am replacing my tub with a shower/tub unit and covering the window. I am palnning on putting drywall up over the window and the new wall that will be built. Can I seam the drywall with the plaster?? Will it work or even look good?? I have heard the two can be used and seamed next to each other.