Ethan, a full blown kit includes hard top, hood and radiator covers, cab insulation, alcohol evaporator, personnel heater, coolant and oil pan heater. That makes a total of two separate fuel burning heaters, the one for the engine is not used when the engine is running. The battery box is also replaced with a coolant heated one (at least on the 8x

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There are pictures in most TMs, but you are right, don't think I have seen one complete set of instructions. The manuals for the 8x8 come close, but all three manuals are needed, the -10, -20 and the -34.
There is also a kit for the cargo compartment for the deuce, got a Vintage Video showing it....