The ones in that ebay ad are just generic oem stuff by the look of them...
Good OEM equivalent pads from the likes of Pagid, ATE or Textar will be exactly the same as the ones from the factory, Euro car parts stock both the Pagid and ATE ones and the Textars can be got from GSF, prices from around £40 - £50 depending where you get them from and around £75ish from the dealer,
OEMs will be find for the road but will give up fairly easy if your planning on any track action so maybe think about a pad upgrade? DS2500s can be got from Camskill for around £140 or the Mintex 1144s for £95ish also from Camskill..
I sourced my 1144s via DaveB on here as he can get them a bit cheaper than Camskill