As far as I know the part numbers are the same preface lift and facelift
5 door spoiler 5F0071606A
5 door skirts 5F0071610
3 door spoiler 5F0071606B
3 door skirts 5F0071610A
The spoiler is about £175 the skirts about £300 unpainted. You can get them Seat dealers. SG Petch etc.