The other thing you don't want to exceed is the GCWR, that is the total allowable weight of the tow vehicle and trailer. In your case, if you have the 5.3l and K5L HD Cooling Pkg, and 3:42 gears, your GCWR is 14000#. Sound like a lot. The curb weight of that truck is around 6k# and the GVWR of the trailer is 8600#. That exceeds the GCWR of the truck. Even if you pack really light, you'll be right at 14,000#.
You'll want a trailer that's at least 2000# lighter than this one.
Since its going to be a seasonal, why not pay to have to towed to the site? Then all this weight stuff is moot.