It's not a secret the price as its posted so
For the caliper spacers, two ~2mm thick plates
330mm x 28mm rotors
Light weight bells, bolts and DS2500 Ferodo pads
Delivered to sunny Scotland for £650
Bargin!!!
And as said these should be lighter, I have weighed these and will weigh the EBC Ultimax's when they come off to see the difference but these should be lighter.