i think the rears won't fit yours.
I don't think 'all' grooves are good, certainly look more like cheese grater discs though
 
got a set on my lcr from same people and they are for front and rear and paid 135 for them as best offer work really well and using better pads as well from galfer.
 
I know the 312mm fronts will fit but will the 239mm solid rears fit? is it worth the £20 to get all 4 zinc plated?
 
they do the lcr ones and work well so would tell anyone to get some. got a pair of fronts to fit the smaller leon as got them sent from someone else as lcr ones if anyone wants them let me know