Great work Marc but that pipe you sanded and painted - you might want to invest in some 15mm copper pipe and some "Yorkshire" fittings, M6 coupling nuts, short M6 bolts and rubber-lined 15mm "P" clips.
I know this because mine went, despite similar preventive maintenance. Started leaking on the weld to the brackets so was near impossible to repair. Using a bending spring, the basic shape was achieved on the copper pipe, a straight (joiner) Yorkshire fitting soldered on each end to create the flanges for the hose to grip, degreased, sprayed black and the M6 coupling nuts screwed onto the stud on the subframe. Enlarge the mounting hole in the P clip to take the M6 bolt and fit the pipe to the subframe usinf the P clips and bolts. Connect the hoses and job done.
Seem to have lost the pics of the Rover one but here's one i made for the Volvo :
Gives you an idea at least!