Back to the original post. On paper the the 3/4 will work...but if you are not careful on watching your loaded weight, you will be over the available pin weight on the truck. Especially if you are taking a generator, extra fuel etc.
I have a DWD 3500 Chev. My 5'er says 14,000 fully loaded with a dry pin weight of 2130. I know we put extra weight in the bed(generator) plus the upfront storage is full...I have never had the trailer total weight get up to 14,000 any time I have weighed it, but I have on occasion pushed the pin weight up to 3000lbs. You are not just getting higher pin weight capacity, I believe the 1 ton also has a bit bigger brakes and little stiffer suspension....to me piece of mind