I have a 14' Portabote with a 10hp motor. I made a pickup rack and cartop it set up. It's easy to get up there and a lot less hassle than setting it up every time. At home, I have a Harbor Freight type trailer that I rigged with skids to haul and launch it set up. I don't leave the motor on the transom while hauling it, though. I don't think it's strong enough for that.
2 big 6v batteries in series will start a pickup just as well as 2 12v's parallel.
We have a 23' trailer that we bought as a junker and remodeled. I also went with all LED's. One thing I would do different is that I put in a tank type water heater. I didn't know at the time that they made tankless ones for RV's or I'd have gone that way. The bed is a queen but not walk around.
