Just make sure you write everything down so that you know how many calories you are taking in
www.fitday.com will help.
200g protein and 200g carbs = 1600 calories. It will be hard to hit 2000 calories when you only have room for 400 more - which will be fat. That's only 44g of fat...Now if your only going to eat chicken, rice and veg....Goodluck.