Re: towing capactiy
Alright if I could upload pics from my phone to the net I would show you a photo of my dads 95 F150. We hitched it to my 27' IMP (9000-10000# set up) and it didn't bottom out the suspension. Moved the boat around the yard, with no trailer brakes and had no issues even stopping it down hill on gravel. His truck sits like yours, and with that set up it was squatting but not on the bump stops...
I think some people underestimate their vehicles. It's better to be that way, but any puck up truck would tow that boat without question.