I recommend the OP get an enclosed "Cargo" trailer for his trike. I towed my HD Super Glide on a small folding Kendon trailer and it worked very well but...
It was outside in the weather everywhere we went and the bad guys could eyeball it at will, often with evil intent. Finally replaced it with a 6' X 10' {14' overall} cargo trailer and Wow, what a difference. It will not only haul my Indian Springfield {862# of Torque monster} bike and trailer weigh 2,220# but my Polaris Rzr as well - Rzr and trailer are right at 2,600#.
Traveling with your own private garage is amazing. In addition to either toy I have lots of room to move extra gear out of our 24' C and into the trailer. The V-10 tows it with no issues and most of our travel is in the mountainous west.
Get a cargo trailer... you won't be sorry.
Here is a shot taken in late October at Arizona Oasis in Ehrenburg right on the Colorado River:
:C