You really can't with that truck and trailer combo.
Toy need an 8' bed.
That truck is not intended to tow that kind of load.
I really don't see how 1600 extra pounds is really going to matter. It tows nearly 10k like its not there and I do not run load levelers on any of my trucks....Whats an extra 1600?
I have been looking at the new trailers with the extended length tongue...Its an extra $325 on a new trailer...I even put mine up for sale, but I doubt I will really get any real takers. So....I need options.
Now that I like....Time to find a camper...