The absolute most basic and lightweight trailer that you can find. Whether it's a sea doo trailer, or a flatbed trailer, or a utility trailer. It doesn't matter. The Bravo is pretty tough, so you can modify just about anything to work. I had mine custom made, and it works great, but you don't need to go to that expense. When you find something, there will be all kinds of people on here to help you modify it as necessary. There are lots of different theories to accomplish the same thing. If you want pictures of mine, I'll try to take some over the next few days.
The nice thing about the Bravo is that you don't need a mast stand, and I designed mine so that I had 4 straps to hold the boat through the scupper holes. These each form continuous loops so that even if they loosen, the boat can't move, you'd need to have 4 failed straps to lose the boat.
I now travel with the sail in a 6" PVC tube, but that's optional too.
(EDIT: This picture was taken as I was learning how to install my new PVC tube. The black pipe at the back where the mast is resting is no longer necessary, I'll explain it all with better pictures later, if you need)