This thread started with the roll cage padding issue. Separately ZG/RN had been working on something.
Not sure if the folks back in England let them both down or not, but clearly there is a small but steady demand that will grow overtime as these trucks age.
A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.
I don't know about the brakes, only their unreliability.