David, I had a trailer pretty much like yours, only with a steel deck. Dual axle , elec. brakes etc. We used the trailer twice to bring our speedster to Carlisle, about 600 miles each way, and a few times to bring it for short trips to engine builder,etc.
Being a belt and suspenders guy , I used axle straps on both ends and crossed another set of straps on each end as well. Overkill, I know, but that puppy didn't move an inch. I think I left it in gear, and I know I cranked e-brake to max.
No matter what you do, your heart will be in your throat for the first few miles, till you stop to check the straps and kick the tires.
Best of luck and sea ewe at Carlisle.