Just found this thread and it spiked my interest as I just in the past couple of weeks acquired a slide in camper and now have much the same set up.
I have a short bed (6.5) and a Lance camper. I have a 16 ft trailer that I have used to carry the jeep for years. Total weight, jeep, trailer, camper and truck is about 16K.
What axle ratio do you have on your truck and what seems to me your "sweet spot" for speed and engine rpm when you are traveling on the hwy?
The superhitch seemed to be the best to use with its "double barrel" receiver setup and it was a simple bolt on. But I built my own receiver extension, only needed 14in and superhitch shortest is 24in. Plus the extension seems very high cost for what it is,
As to securing the jeep to trailer, Last year I went to screw type binders and they are much better.
I am from the "pull against the springs" school and I use 4 chains on the trailer and 4 other chains that I hook to strategic points on the frame of the jeep. Each chain is about 2 ft long. Attach the binder between each chain. I have done this for years and have pulled from Texas to California, all over West Texas, New Mexico and Colorado. I hve never had a problem with the tie down. I did have some stress cracks show up on my trailer that I welded and brace.
Let me know where you best pulling stats are?