Unfortunately, I think you'll be looking for new/replacement alloys all round. Suggest trying to find out (using the VIN) what the car was originally fitted with.
If its an AMG Line car, which I think it may well be given that it has the plastic-tab wheel arch extensions (SE and Sport models don't have these), then the original rims were probably 5-spoke 18" 'staggered' items. Something like this:
Fronts: A205 401 1100, Tyres 225/45 R18 95Y
Rears: A205 401 1200, Tyres 245/40 R18 97Y
Good luck.