Many moons ago I helped a co-ed move from Florida to Connecticut after graduation. Pulled a small enclosed U-Haul with a 350cc motorcycle and all her belongings behind a Datsun b210 with 65 hp. Max speed limits were 55. It pulled fine, but stopping was a challenge.I'd want it enclosed but your vehicle size prevents that. That's a shame, it would serve as a cheap motel too. I'd buy the trailer and sell it when I got home.
A 5x8 no frills enclosed trailer only weighs 850 lbs. That leaves 650 lbs for bike and gear.
The problem is the aerodynamic drag. My trailer at highway speeds gets the same fuel economy if empty or loaded with 900 lbs.