Thank you everyone for your advice on this. I have spoken with the dealership and pretty much their answer was no, since I had already signed the papers and handed over the check, it is mine now.
So the good news is I got the trailer I wanted, the bad news is I maxed out on the truck.
So it is looking like I am at plan "B", start looking for another truck.
As a side note I do have experience hauling, but with a 7 ton MTVR and 50ft trailer. The reason I'm here asking this is because all I was taught was how to get it from point A to B and not accidently kill anyone, and nothing about weight distribution, hitch weight, or trailer weight restrictions.