This gets away from tool's and demo equipment, but it is still a 18C item. If your conducting mounted op's, you should always have a good recovery kit. Preferable 1 per truck, but at a minimum at least one per convoy.
This is a pretty good basic kit.
http://www.4x4wire.com/reviews/eoprecov/
The only thing I would add to it, is an extra length of cable 25 to 50 ft long, that would fit through the pulley.
Plus do regular PMCS on the winch on your vehicle to ensure that it will work properly when needed.