Back in '92, I was part of a team that took an ex-army Land Rover 2a to Australia for a motor rally. We completely rebuilt it and carried a comprehensive spares pack with us, all wheel cylinders, hoses and master cylinder, etc. The event started in Sydney and we travelled over 2550 miles through the Outback to the finish at Ayers Rock...........no problems whatsoever. Come the return journey back to Sydney, we have to travel 1800 miles in 3 days.........on the second day, the clutch hydraulics fail, not too much hassle as the road is flat and straight, untill we get down to the Flinders Ranges and it is hilly, eventually we get to Mildura and spend the night, in the morning I remove the master cylinder, we do not have a spare, the only damned cylinder we don't have, but there is a new seal kit, second problem, there is a deep score in the bore, so polish it as best, refit and bleed, OK for 10 miles then same again. We covered 1,300 miles in 2 days like that. Got back safely though.