Struck out trying to fix door lock
Be of my door locks (lift up series/NAS) style has despite all the fiddling I've done never unlatched easily.
It's "tight" and only unlatches on the last inch or so of movement and then takes a bunch of force to unlatch The inside lever isn't much better.
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.