Flank the mirror with fixtures placed at eye level (around 66 inches), ideally spaced 36 to 40 inches apart. Try to see fixtures in action before you buy to make sure the amount and quality of light is sufficient. If there's no room for side sconces, install a long fixture on the wall above the mirror. Don't rely on a recessed ceiling fixture (think Dracula face).
Pedestal sinks can saver or waste space depending on the arrangement and storage options of your bathroom. If you want to open up floor space, they’re an excellent choice. However, they don’t offer the storage that vanity cabinets provide. If your bathroom lacks storage but you have your heart set on a pedestal sink, include open shelves or a tile-lined niche behind or adjacent to it. Alternatively, consider using cabinetry 16 or 18 inches deep, instead of the usual 21 inches, to maximize your floor plan.
Turn off the main water supply to the house, and in a convenient location, cut the hot and cold water supply pipes for the bathroom. Also cut out and remove all the existing water lines and fittings in the bathroom. Finally, cut out and remove the vent section leading to the sink and the main stack 5 in. below the vent tee. Stuff rags into open drain lines to keep sewer gas out of the house.