Well the towel is hiding the style but judging from the cab next to it is is just a simple white shaker cabinet with either a white laminate or a white painted wooden top. Once you have your sink size then just get a shaker style sink cabinet and put a white top on it. It's a simple style that any cabinet manufacturer would have. You might even be able to pick one off the shelf at a big box store depending on the size. They trimmed it out with the interesting towel bar but basically a box is a box.

I purchased Amerock pulls for my kitchen and I couldn't find them discounted anywhere. They were the same price everywhere I checked. I ended up purchasing them through my contractor who passed along their wholesale discount to me. I paid just over $800 for my pulls and think I saved about $68. Just a word of caution about ordering pulls online. Make sure you're able to see and touch them in person before you buy all that you need. Pulls that look practically identical can feel very different. Just want to make sure you're happy with them. I thought I was going with one pull until I saw it in person. Realized it was too small and it wasn't comfortable to grip and open drawers. Went in another direction and am very happy.

We're nearly twins, jerzee! My vanity was supposed to be a warm mid-brown and it turned out darker, more mahogany-looking than I'd planned. Counter is also Cararra. My walls are SW Antique White, sort of french vanilla, and floors are a mid gray tile. Initially I thought the walls were too warm for the grays and chrome, but I like gray and cream together and I'm leaving it all as is. I had stressed over matching or mixing the metals and, in the end, have mostly chrome except for a bit of satin nickel. Nobody notices or cares. I hope you like the original finish on the mirror. A lot depends on how it works in your space. I have plenty of natural light in my bathroom. If you decide to go more silver, I can share what I did, plus what I did at first and what you should avoid doing. :)

I suspect you'll have to go custom because the odds of finding a mirror that size with the right proportions just sitting around waiting to be bought are slim. Also, it's going to be hard to find sources online that have that huge a mirror as a standard item and are willing to ship it...unless they charge a huge amount for crating it.