I had my wiring for outlets, sconces, over head fan and ceiling fixtures all done before mirror, fixtures, vanity and cabinetry were added. I have a small oval tilting mirror that is only 24 wide over my vanity it was dirt cheap from lowes and they had rectangles too. Under 100 dollars. Your contractor should be able to drill with a new and properly sized drill bit to tile without issue and if it cracks the tile can be easily replaces. I know cause glass door guys broke a tile on their last hinge using a dull unchanged bit and my tiler fixed it is less than an hour. I can not attest to its quality but I love my cheap I mirrors function. This is similar to mine might be too short at 24 I think. https://www.atgstores.com/bathroom-mirrors/gatco-elevate-small-rectangle-mirror_12643290.html&ppc=2615&af=2615&cm_mmc=sce_google&s_kwcid=AL!4500!3!112410639507!!!g!189703215387!?gclid=CIyj4OfV0M4CFUMkhgodpYQGxw&ef_id=V2mUpwAABYlpJA92:20160820185548:s

Some pictures would certainly help me give you an answer. But for some good bathroom lighting tips, check out this article: Expert Bath Lighting Tips

HI everyone!! Sorry I haven't responded. I don't get Houzz alerts on my phone and didn't see all of these messages. First of all, thank you all so much for taking your time to respond. Can I just say how amazing the Houzz community is?? In response to some of the questions: My father is 70. He very recently had a major brain surgery so my mother wants to update the bathroom to just make it a little nicer for him. Unfortunately, our budget only allows for a new vanity, mirror, and lights. So far he hasn't said anything about the toilet being too low. I think that's ok to stay for now. He likes lots of drawers so I like the idea of putting more shelving above the sink! We just can't figure out the "style" of the bathroom is so that we could get a matching sink. We just don't know what to google. Love the vanity pictures you guys have sent - I'm forwarding them to my mother right now

Thank you so much for your help! We actually do need the tower for storage as the bathroom is not very big at all. It currently has a bulky built in linen closet on the left hand side of the vanity and the current vanity is even smaller (60") that my husband and I have shared for 10 years. So while I'd LOVE more counter space, even the extra 9" we are gaining feels like a lot for us. We put the tower on the right because it is next to the wall when you walk in the door which keeps it from being in the middle of the room breaking it up. It helps that the top part of the tower sets back on top about 6" from the facing of the lower cabinets to make it feel less intrusive. I am concerned that a 3-light fixture may make it feel more congested, but I just don't know as it seems there would be room for it.. Is more light better or would a 2-light be better for scale? I do love symmetry, and you have no idea how much it pains me to not have a perfectly symmetrical vanity.. But it really is the best option for the space due to how tight the bathroom is as a whole. The tub is directly in front of the vanity (about 4.5' walking space) which also sits in front of a window providing a lot of natural light in the room.