I think you need a truck designed to pull and carry at least 20% more than the weight of your trailer.
If you follow that golden rule of towing you will be fine.
remember: pulling the trailer in only about 10% of the issue.
its when some #$%%^& pulls out in front of you and you have to shut her down to a dead stop while you and your passengers are screaming.
that's when you just can not have enough truck!!!!!!!!!!
bigger is better when it comes to hp and torque and brakes, did I say stopping ability !!!!!!!!!!!!