Need my fellow photographers advice on lens choice

gomoku wrote:

Why don't you just walk around with the 50mm f/1.4D + the 85mm f/1.8G that you got? Or add the new 28mm f/1.8 if you need wider angles. Switching lenses is fast when you get used to it and IQ is simply better and you have the creative options of shallow DOF available.

With the D800 you can achieve some extra reach by cropping in post plus you also get used to move your vantage point a bit more with a prime than with a zoom. Together this makes you cover more with a prime than you think.