You mentioned Overlander..I watch a bunch of there video's on youtube for idea's that will work with a TC..There off-road boondocking guru's with lot's of cool ideas..There favorite fridge by far for the ones I have seen,is the ARB fridge/freezer..Why,I have know idea because I think the CFX and Engle are better especially in the battery use department..
But that is for hard core boondocking in rough terrain..
Lance 9.6
400 watts solar mounted/200 watts portable
500ah Lifep04