I would open up a bunch of those boxes and start dry laying them on the floor, pulling measurements, and look at how thing are going to fall into place.
16's cover a lot of surface so I would make sure the floor is dead level and plane. Also I would do the job in sections. You'll be happier with the results.
The main hall from the front door to the kitchen is primarily a major focus point so I would try and lay out full tiles there, no less than 1/2 tiles if you can get away with it. This sometimes regulates where your cuts will fall in the kitchen too so it's a matter of preference. Let us know what you have for a subfloor
