As long as the underpinnings match a Leon, then i cant see their being a
problem fitting a Leon Cupra R front bumper to a toledo, as it bolts on in pretty much the same way across the range.
You need to speak to a SEAT dealer to source the parts, the parts you need for the front bumper are as follows, ask them to use these part no's:
Front Bumper Parts SEAT Part No.
Front bumper 1ML807221GRU
Radiator Grille 1ML853653A79Y
Cover 1M6853915B41
Bumper Spoiler 1ML805903
Ball Pin x 2 1ML807762
Radiator Grille Lower 1ML85366879Y
N/S Lower Grille 1ML85366579Y
O/S Lower Grille 1ML85366679Y
N/S Wheel Arch Cover 1ML807479
O/S Wheel Arch Cover 1ML807480
Centre Grille "S"
Badge 1ML85365179Y