1999 Fiesta - Rear Brake Pipes

Hi folks
Just looking for some advice in replacing the solid rear brake pipes on a 1999 Fiesta 1.4 petrol.

i have got the pipes made up OK - is it a difficult job to do? there seems to be various heat shields around the exhaust which cover the brake pipes - are these difficult to remove?

Also how far do the brake pipes go forward in the car?

Thanks