You should have a look at the pre-owned market. There are folks out there jumping ship and going to other brands. Many times you can find great buys (not necessary given away), but if you can get lenses you need for about 60% of their initial values, you'd do good. As long as you can check them out throughly. For the use you mentioned, you should start with a 24-70 2.8 and a 70-200. With the D800 you can crop all you want so you might not need a specific macro lens just now.
Good luck.
Since the original post was from 2013, it is possible that feature no longer exists.I can't see on pixelpeeper where you set the type of camera or lense you want to look at.