With 1900 pounds of payload you should be within your ratings. Figure 1000# TW leaving 900 for passengers and gear. Very doable. As you mention take your time and don't over do it. I would not suggest that combo for lots of cross country trips but it should perform be OK for relatively short trips. Be sure you have LT tires at full pressure.
If you are concerned about controlling the length, get yourself a Hensley or Pro Pride. The do work and are superior to any friction based hitch. Yes they are expensive. I was skeptic until I finally bit the bullet and purchased a Hensley.
Worked like a charm and no regrets.
