Cliff,
The trailer will slow you down to 55 mph on the interstate and it still will be a bouncy ride. The Jeeps are also gas hogs, especially considering their size!
I
do agree that the Jeeps do well in the terrain. Go buy the big diesel and then drag a stripped bare bones jeep into the woods with it!
If you buy a 3/4 ton truck, I'd stick with a 7.3 PSD Ford.
George