Before departure must do a complete check-up of the car, and all equipment must be in perfect working order. The electrical system should not be overlooked: a car that will not start because of an inefficient battery, if in erg, is abandoned! (Editor's note: extreme solutions consider dual battery with diverters, a street feasible only in extreme cases of raids in solitary definitely not recommended by the editor) The towed by another vehicle is crazy and almost certainly would cause the break even of the latter. The cooling system must rely on a large fan.
This is not a bad idea to mount a radiator for the oil: the temperature of the engine will drop significantly, even under stress. Discourage instead of modifying engine parts: let the pressure of the turbine to the values reported by the House, and not calibrated the pump diesel: what remains standard is less prone to breakage. Oil change, engine and differential are new. Do check the throttle cables and clutch. If this is hydraulic, notice the wear and, if in doubt, replace it. If the car is not fitted as standard, you do install a thermometer and an oil pressure indicator turbo and engine oil. Even a voltmeter would be very helpful for you to check the efficiency of the alternator.