Your receiver hitch is only rated for 5k lbs. You need a WDH to pull your boat. My boat weighs about 8k lbs loaded and my truck with the WDH sat with barely any change in squat.
I did a fair amount of research on this issue. I have an 8000 lb boat and was concerned about a wdh with my trailers surge brakes. A highly respected hitch installer in the Salt Lake area informed me that upgrading the receiver is impractical due to it also supporting the bumper assembly. Curt...