Chris, only couple bits of advice I can give at this time would be these....
definitely get a GN. you will thank yourself many times over. so much easier to pull in any conditions. I easily doubled my weight that I pull and it's actually easier now (absolutely no swaying and such)
definitely want the longer tongue or something adjustable that can give you a little more distance between GN and bed rail. there were a few times in Moab where I was slightly worried about mine contacting the bed rail when I was offcamber turning around in those non-pavement lots. I have the clearance, but it'll rattle your cage a couple times when you see how close it can be.
that and you'll probably just want to get small rollers for the front axle to load it. Mike does this with his bronco and his enclosed. that way it clears the wheelwells no prob and just drives right in.
hope that helps a little