thing about this look is you can find pieces inexpensively once they're on your radar. Hunt down a distressed desk and chair at a flea market or antiques store, and add a metal toolbox for office supplies.
rod is about 11 feet. It was purchased from Canadian Drapery Hardware which sells to trade only. I'm not sure what retailers carry it. It was custom - 2 six foot rods that were cut to size. Your interior decorator or designer can work with you for your needs.