The Duravis are pretty much out since they are not rated to carry the amount of weight you could be looking at. They are rated for 3,042 lbs. which means you're looking at 6,084 lbs. capacity on each axle. If you're loaded to 16,000 lbs., then you could conceivably be carrying 6,400 lbs. on each axle. 16" LT "E" rated tires shouldn't be used on 7,000 lb. axles without some serious thought.
With the weight rating of your trailer I would go with the Sailun tires, either the 235/85-16, or the 235/80-16. Both are "G" rated tires which translates to around 4,000 lbs. carrying capacity each. That's what I have and am very happy with them. Many listers will agree.
On edit, of course this is presuming your wheels are rated for the higher pressure of the "G" rated tires. Although some say running over 90 psi may not be needed depending on your weights.