Ok on that stud issue (if you do want the medicine cabinet) that's no biggie. If it's not a support wall they just cut out the area for the cabinet and basically build a frame out of 2x4's for it which connect the studs. So if you want that, now's the time (if it still looks as it does :) I had to do that in my powderroom which is typical construction, but the wall is a very small wall so it had more studs than normal (it has an angle off of the 2' straight area) Don't ya wish I had pictures LOL I sure do! My bathrooms are one step ahead of you right now. They're applying drywall as we speak. We're not only doing our powderroom (which was built new because we didn't have one on the main floor) but we're also doing every single room in the house, including a major gut of the kitchen. I don't have one room with drywall on every surface and I'm cooking in the garage :) We have a living area in the driveway. Sounds elegant huh? Actually the home will be when finished. I spent about a year on the design (it's a five level townhome so it's all interior work) and we have two magazines waiting to do spreads on it (mostly the kitchen) but right now...ugh it's ugly LOL And frankly so am I now that i think about it...I get dressed every day between the time I hear the first little pit a pat of tiny contractor feet on the front steps and the thud as they land on the top step :oP About 3 mins tops! You probably know the feeling if your bathroom looks like that! I love the glass door idea (obviously because I'm using it too LOL). I'm actually picking mine today. We'd planned on a typical solid core door and after building the new walls for the master bath, and looking at the tile for the shower, I was worried it would get too dark (my design is all chocolate, tan and white but the "chocolate" elements are very large...like the shower wall) We're on a lake and have huge windows filled with light just outside of the bathroom and I decided it would be best to get as much natural light as possible flooding the room, so the glass is the way to go. If it's quality, it will look great and still feel private. Do be sure to spend some money there because I looked at flimsy doors at the big box stores and they were visable through the "opaque" glass because the glass and the finish was so cheap. The difference is only a couple hundred bucks and it's money well spent. I think your bathroom is going to be so fabulous! I love the marble tub surround (and when I started reading and saw fake marble I had the same reaction as you did when you saw it). I'm doing an undermount tub (which you might consider) and would have loved to do a slab of marble but couldn't find one in a deep brown that would work. I'm also doing the same brown in the shower (walls) so I'd have had to buy quite a bit of marble. I can't imagine what my total would be! Tell me about the stepping stool? I'm doing a shelf out of the green piece (I had to buy the whole scrap and have about 2' on one side extra and a foot on the other, both about 3' long) I was going to have a bunch of coasters made up LOL but the stepping stool idea is nice....or even as a top on a tiny table next to the tub...Do you have any pictures heh heh

This is the OLD vanity & mirrors- I don't have a pic of the new cabinets BUT the new vanity is standard height, (same as in pic) as you can see the mirror is even taller than the vanity- so maybe 48" tall mirror in pic? The new vanity has towers on either end, sinks moved closer together, but lighting still at same height. There will be new, individual mirrors over each sink

Here are some examples of full mirror bathrooms. Is your vanity inserted between two walls? Personally, I like the full height mirror if no wall can be seen on the side of the vanity. https://www.google.com/search?rlz=1C1CHBF_enCA770CA770&sxsrf=ALeKk00ZnBFpKlIrLygCR5pM7VJ7qLc9vA:1590888282656&source=univ&tbm=isch&q=vanity+with+full+height+mirror+images&sa=X&ved=2ahUKEwix3NvX-NzpAhWkdt8KHYq5AIUQsAR6BAgCEAE&biw=1898&bih=902#imgrc=-yII9zb3QV2FfM

I have a Tech Lighting Lufe 48" fixture that emits 3444 lumens. The Lufe is so bright at full power that you could shoot a movie. Your light emits only about 10% less. I am certain that you do not need any additional lighting. Be sure that the Radiance light is dimmable and install a compatible dimmer for it.