It might be and it might be not. Main question is-can you have electrical box so close to the wall? I'd ask a certified electrician..Even though the center of the sconce then at 4,5 I guess (1,5 from the wall plus 6 divided by two, right?)..might be okay but I'd still ask. They also need to be able to have 2 by 4 there to attach this box..if it's not a lot of inches to play with, it might be problematic, because what if they have to shift it an inch? If you already went through all this talk and electricians can do it, then it turns to be purely aesthetic question. How heavy is the mirror frame? low profile, high profile? 6' sconces-do they look tall and slim, or not? what is their projection? 1,5 inch will be hard to pull off.. what you can do maybe if you prefer lights from the side (which I agree, are more flattering..what about pendants coming from the ceiling?...Come with their own set of problems, but it's another possibility. not exactly overhead since they hang lower..

Well, we settled on mounting the center of the fixture (the round part that mounts to the wall over the electrical box) at 63", which then puts the very top of the fixture at 70" and the center of the light source at around 67". I sure hope I made the right decision. The contractor/designer's suggestion was 5" taller than the 63". That just seemed too high for me. The electrician has set the electrical boxes and the piping for the wiring, but I'm still second guessing myself. Yikes!!!

Sconces go at eye level so you may want to split the difference between your height and your husband's. You don't want to place them too far apart so that they are ineffective--36" is about the recommended distance. 36" is a huge mirror. I'd look for a 24"-30" one. Vanity, lights, and mirror are best drawn on graph paper before you buy the materials so you are sure all the elements are to scale and fit the space.

Like Jan and Beth said, you putting the cart before the horse. New home - live there for 6 months to a year before doing any major renovations. During that time prioritize your needs, wants and like to have renovations and figure out the budget for renovations. Every renovation you commit to will take twice as long as you think it will and cost twice as much as you think it will. Budget should be dependent at least in part to the amount of time you believe you will live in the home. You should also be exploring your style and color selections. Once you have a solid budget you will know what things must stay and what you can afford to change and what elements you don't want to change. Once you know what has to stay you can design around those elements. Do they work with your preferred style and colors? What compromises will you need to make to create a cohesive home? I am not a contractor, but if you are planning on expanding the shower I am pretty sure the old shower has to be re-tiled. The whole shower has to be water sealed and that seal is under the tile. I don't think you can save the tile in the niche.