I always take a few important spares on remote/long trips. 10 litres of drinking water (Per person), hoses top/bottom radiator, radiator cap, odd moulded hoses, belts and of course at least a meter of heater hose. Hose clamps, joiners for heater hose to bypass heater if it blows, plugs for them if needed, heater tap, heavy gauge electrical wire, solder and something to melt it (Lighter), a couple of relays (For lights), electrical tape, fuses, can of bars leak, a couple of wire coat hangers, fuel line, fuel filter, plastic sheet for a window if you break one, oils and brake fluid. A bar or two of soap as when it is mushed up with a bit of sand this can be used to plug up a leaking fuel tank short term or a fuel tank patch kit. A few spare screws, nuts and bolts. Super glue, a tube of liquid steel, spare fuel cap and finally some metho in case you get water into your fuel.
As far as tools go you should have a spare wheel brace or a socket and bar that fits, a simple electrical test lamp, a second jack incase you need to raise the car to get it out of a hole before your standard unit will fit, pieces of steel or heavy plywood big enough to go under your jack incase you need to lift the car on soft ground. A hacksaw or small hand saw with spare blades. All this in addition to a simple tool kit spanners, pliers, screw drivers and may be a spark plug socket.
You should fit all of the spares into your boot behind the wheel arch so they wont take up too much room. I keep a spares kit like this in all of my cars as they will be there when you need it and when you do you wont have to buy them.
Have a good trip
Daza
