Travel Trailer Tow Vehicle

I was in a sort of similar situation as you. When I purchased my solaire I had a 2010 F150 supercrew 4x4 with the 4.6L 3 valve v8. It pulled the trailer weight just fine on flat ground but mountains would have been hard on it. The ride was what made me white knuckle on occasion. The springs are lighter in the smaller truck to give you a smoother ride. This caused alot of bouncing and the truck feeling like it wanted to shimmy when cresting a hill. My trailer is of similar weight to the one you have. I quickly upgraded to a 6.2l F250 supercrew 4x4 and experience a much better ride when towing. Granted my F150 did not have the turbos nor the horsepower of what you are looking at but ride alone would do it for me. I also have the luxury of the truck not being my everyday driver. Another thing to consider is will you ever want to bring a golf cart along? I never even gave that a minutes thought but a golf cart will weight around 1000 lbs. If you are close on payload that could be an issue. Not to mention not enough bed length.