I currently tow an XLT 285BH with an F-150 with MaxTow package. This was the ONLY combination that would work on paper with a 1 series truck and a bunkhouse trailer. That said, in real life I tend to be over the RAWR by ~400 when ever we use it, I am under on all other ratings. That ~400 over comes at a cost though. I am constantly worried about trailer contents location, so much so that I probably overload the rear trailer tires (everything has a trade off).
So the answer to can it be done, yes, it can; and safely as I feel no concerns going down the road. The real world question is, is it worth it. To that I would say no, I feel like an aircraft load master every time i want to go camping, making sure weights are all in the right place.
We HAD to buy a trailer as the housing market was next to nothing due to severla large-scale construction projects when we moved here and no housing available on base. Had I had more time, and knew then what I know now, I would have gone bigger all the way around.