So the spongy poor performing brake pedal wasnt all in my mind. Turns out the rear 2 pots had seized the inside piston on both calipers, it effectively wasnt utilising the rear at all, so, i did the only sensible thing.
consists of endless front rotors, dba4000 rear, HEL lines and AP formula fluid. Had the brakes painted up WRB to match the car, fitted new decals, think it turned out nicely!