Coolmom42 thanks for the response. I'll check out the Amerilite 21MB.
I'd like the 2000+ pound CCC to support extended dispersed camping and maybe full time camping. With no power and water hookups I'll be adding several hundred pounds of batteries and a few hundred pounds for a generator and fuel. I'll eventually add about 400 watts of solar but I think that is pretty light. If possible I'd like to mount auxiliary water tanks. I also have about a 100 pounds of kayak/bike plus mounting hardware to mount to the trailer.