Let me just say, that this is one job that I never ever want to do again. Never ever!!
It was pretty difficult getting everything out as the hose connection to the pipe connecter was very rusty, but I managed to loosen the connecter at the brake limiter valve side and then pulled everything through the brackets. (see above photo). I used vice grips to loosen the hose and replaced it with the new hose.
Connecting it again was another story. I started by trying to connect the pipe connecter to the limiter valve and couldn't get it in deep enough for the threads to engage. Believe it or not I tried for about 4 hours and then 2 hours the next day.
In desperation I got a loose spare pipe connecter and it screwed in straight away. So I tried again and this time it went in with no problem. Perhaps the thread was blocked or damaged and the spare connecter cleared the way.
Putting the bracket clip that holds the hose in place took 3 hours yesterday. Eventually I realised that the bottom of the 2 legs was a little thick so I tapered them down to a knife edge on the grinder and then tapped it in with a hammer.
Today went better and I could finally bleed the brakes and call it "job done".
My back and neck are wrecked, my hands are black and blue and bleeding and to make matters worse the temperatures have been below 10. My Johnny Walker Blue has never tasted better!!