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		Hi,
  don't forget to take half a dozen 2x3" planks, cut to about 50cm long, should fit flat some where in your vehicle. Cheap as chips and very useful.
Good for jacking, packing, holding etc - never get under a vehicle with only a jack holding it up.
Can also be used as emergency kindling or even fire wood.
cheers
	 
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		RE communication equipment - we use 'find me spots' at work.  Pretty cheap ($150) have a couple of pre-programmable messages from everything is hunky dory to, minor issue no need for help, to send help to, full blown search and rescue force descending on your position. 
J
	 
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		Hi Lift jack point out unless you got bull bar front and rear step bar tow bar on modern vehicle you going to find it hard to find a suitable spot to use it without damaging your vehicle panels.
If you need to lift a modern vehicle you are better off with an exhaust bag
No of times you truly get stuck in moderate situations doesn't justify a electric winch, for safety sake a hand winch with a block and sand anchor is fine don't foreget regardless of winch your tree protector strap.
A couple of snatch straps for recovery by another vehicle joined together if in soft sand etc worthwhile investment and in emergency extends  line of the winch
A long handle shovel axe high speed air compressor good to have in your recovery tools as well