One big difference between towing a boat and a travel trailer is wind resistance. A trailer will probably feel about double what a boat feels like at highway speeds.
It is doable. Some will post on here absolutely against it. My suggestion is do what I did. Rent something similar to what you want, see how it tows, and go from there.
As for the WDH, for ease of setup, I would try and go with the Equ-a-lizer. If I was to do it again, I would have ordered my own hitch and gone that route. Seems a lot easier to setup than the reese dual cam, which is also a nice hitch. When you rent though, you will most likely get a simple WDH, which doesn't help as much with crosswinds and the push/pull draft from trucks and busses like a good WDH will.