There are lots of options with that size vanity. I think 1500 would be on the high end, what's your budget & storage needs? You can definately put two sink bases that each have couple of drawers in them together, no one would know but you and it's a nice look. They aren't the best quality, but you can get two of them at the big box stores for less than 500.00 and if you're so inclined, go to a granite store, find an inexpensive remnant and have a nice counter made out of it, which would probably run another 300-500 depending on what you get. Personally, I wouldn't buy a vanity from an online store because I did a LOT of research and found them to be high. We needed 90 inches of vanity, and ended up ordering bathroom cabinets through the Home Depot kitchen department. Even the 2 base cabinets through American Woodmark were less than 500.00 (during a 20% off sale).

Plumbing-wise, it's not complicated, as long as the 60" vanity is long enough to cover the wall plumbing connections. Standard drain and supply components allow for innumerable configurations. If the vanity cabinet has drawers, some may have to be modified, but using a coping saw and glue, I've never found that to be insurmountable, either.

Thank you for your help! That's a good thought! Unfortunately, we've already primed the new drywall and have a single light electrical set up, so I think I'm stuck with a single mirror now based on the lighting. There also wouldn't be room for sconces on either side of the mirrors since the frames would be right next to the shower wall/bedroom wall if we had 2 so it wouldn't look as nice as yours!

A custom 68” light that doesn’t exist. You are going to have to redo the electrical to have 2 or more lights.